TY  - JOUR
AU  - Šešlija, Sanja
AU  - Spasojević, Pavle
AU  - Panić, Vesna
AU  - Dobrzynska-Mizera, Monika
AU  - Immirzi, Barbara
AU  - Stevanović, Jasmina
AU  - Popović, Ivanka
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4000
AB  - Present study reports synthesis and physico-chemical evaluation of hydrophobically modified pectin derivatives, obtained by reacting of pectin with di-acyl chlorides (glutaryl and sebacoyl chloride). Depending on length of the inserted carbon chains, the acylation resulted in possible formation of mono-grafted (isolated chains) and bi-grafted (chemical gels) structures. The structural features of obtained derivatives were investigated using FTIR spectroscopy, confirming the successful synthesis. The concentrated aqueous solutions of modified pectin showed interesting rheological properties, having lower values of apparent viscosity compared to neat pectin. Since the GPC analysis indicated that no degradation occurred, the viscosity decrease was explained by more heterogeneous organization within modified pectin solutions (microparticles together with sticky polymer entanglement). A shift in particle size distribution proved that proposed modifications also affected pectin solution properties in diluted regime. The modified samples turned to be more sensible to thermal degradation than neat pectin, whereby the increasing size of flexible acyl chains attached to a polymer backbone reduced the glass transition temperature. The hydrophobicity of obtained derivatives was evaluated by sessile drop and du Nouy ring methods. It was found that acylation enhanced hydrophobicity of the pectin molecule, while hydrophobically associative character turned to be inconsistent in aqueous and non-aqueous environment.
PB  - Elsevier, Amsterdam
T2  - International Journal of Biological Macromolecules
T1  - Physico-chemical evaluation of hydrophobically modified pectin derivatives: Step toward application
EP  - 932
SP  - 924
VL  - 113
DO  - 10.1016/j.ijbiomac.2018.03.006
ER  - 

@article{
author = "Šešlija, Sanja and Spasojević, Pavle and Panić, Vesna and Dobrzynska-Mizera, Monika and Immirzi, Barbara and Stevanović, Jasmina and Popović, Ivanka",
year = "2018",
abstract = "Present study reports synthesis and physico-chemical evaluation of hydrophobically modified pectin derivatives, obtained by reacting of pectin with di-acyl chlorides (glutaryl and sebacoyl chloride). Depending on length of the inserted carbon chains, the acylation resulted in possible formation of mono-grafted (isolated chains) and bi-grafted (chemical gels) structures. The structural features of obtained derivatives were investigated using FTIR spectroscopy, confirming the successful synthesis. The concentrated aqueous solutions of modified pectin showed interesting rheological properties, having lower values of apparent viscosity compared to neat pectin. Since the GPC analysis indicated that no degradation occurred, the viscosity decrease was explained by more heterogeneous organization within modified pectin solutions (microparticles together with sticky polymer entanglement). A shift in particle size distribution proved that proposed modifications also affected pectin solution properties in diluted regime. The modified samples turned to be more sensible to thermal degradation than neat pectin, whereby the increasing size of flexible acyl chains attached to a polymer backbone reduced the glass transition temperature. The hydrophobicity of obtained derivatives was evaluated by sessile drop and du Nouy ring methods. It was found that acylation enhanced hydrophobicity of the pectin molecule, while hydrophobically associative character turned to be inconsistent in aqueous and non-aqueous environment.",
publisher = "Elsevier, Amsterdam",
journal = "International Journal of Biological Macromolecules",
title = "Physico-chemical evaluation of hydrophobically modified pectin derivatives: Step toward application",
pages = "932-924",
volume = "113",
doi = "10.1016/j.ijbiomac.2018.03.006"
}

Šešlija, S., Spasojević, P., Panić, V., Dobrzynska-Mizera, M., Immirzi, B., Stevanović, J.,& Popović, I.. (2018). Physico-chemical evaluation of hydrophobically modified pectin derivatives: Step toward application. in International Journal of Biological Macromolecules
Elsevier, Amsterdam., 113, 924-932.
https://doi.org/10.1016/j.ijbiomac.2018.03.006

Šešlija S, Spasojević P, Panić V, Dobrzynska-Mizera M, Immirzi B, Stevanović J, Popović I. Physico-chemical evaluation of hydrophobically modified pectin derivatives: Step toward application. in International Journal of Biological Macromolecules. 2018;113:924-932.
doi:10.1016/j.ijbiomac.2018.03.006 .

Šešlija, Sanja, Spasojević, Pavle, Panić, Vesna, Dobrzynska-Mizera, Monika, Immirzi, Barbara, Stevanović, Jasmina, Popović, Ivanka, "Physico-chemical evaluation of hydrophobically modified pectin derivatives: Step toward application" in International Journal of Biological Macromolecules, 113 (2018):924-932,
https://doi.org/10.1016/j.ijbiomac.2018.03.006 . .

TY  - JOUR
AU  - Jokić, Bojan
AU  - Džunuzović, Enis
AU  - Grgur, Branimir
AU  - Jugović, Branimir
AU  - Trišović, Tomislav
AU  - Stevanović, Jasmina
AU  - Gvozdenović, Milica
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3579
AB  - Poly(aniline-co-(m-aminobenzoic acid)) was synthesized electrochemically at graphite electrode under galvanostatic conditions. Aqueous electrolyte for synthesis was consisted of HCl and different amount of aniline and m-aminobenzoic acid. The presence of the meta positioned carboxylic group in m-aminobenzoic acid influenced higher co-polymerization potential, different morphology and electrochemical behavior of copolymers compared to polyaniline. Electrochemical activity is achieved by proton exchange in neutral environment that can result in a faster charge/discharge process, which is in the case of PANI limited by slow anion exchange, making this material promising for consideration in super-capacitors and in biological system.
PB  - Springer, Dordrecht
T2  - Journal of Polymer Research
T1  - The influence of m-aminobenzoic acid on electrochemical synthesis and behavior of poly(aniline-co-(m-aminobenzoic acid)
IS  - 9
VL  - 24
DO  - 10.1007/s10965-017-1313-5
ER  - 

@article{
author = "Jokić, Bojan and Džunuzović, Enis and Grgur, Branimir and Jugović, Branimir and Trišović, Tomislav and Stevanović, Jasmina and Gvozdenović, Milica",
year = "2017",
abstract = "Poly(aniline-co-(m-aminobenzoic acid)) was synthesized electrochemically at graphite electrode under galvanostatic conditions. Aqueous electrolyte for synthesis was consisted of HCl and different amount of aniline and m-aminobenzoic acid. The presence of the meta positioned carboxylic group in m-aminobenzoic acid influenced higher co-polymerization potential, different morphology and electrochemical behavior of copolymers compared to polyaniline. Electrochemical activity is achieved by proton exchange in neutral environment that can result in a faster charge/discharge process, which is in the case of PANI limited by slow anion exchange, making this material promising for consideration in super-capacitors and in biological system.",
publisher = "Springer, Dordrecht",
journal = "Journal of Polymer Research",
title = "The influence of m-aminobenzoic acid on electrochemical synthesis and behavior of poly(aniline-co-(m-aminobenzoic acid)",
number = "9",
volume = "24",
doi = "10.1007/s10965-017-1313-5"
}

Jokić, B., Džunuzović, E., Grgur, B., Jugović, B., Trišović, T., Stevanović, J.,& Gvozdenović, M.. (2017). The influence of m-aminobenzoic acid on electrochemical synthesis and behavior of poly(aniline-co-(m-aminobenzoic acid). in Journal of Polymer Research
Springer, Dordrecht., 24(9).
https://doi.org/10.1007/s10965-017-1313-5

Jokić B, Džunuzović E, Grgur B, Jugović B, Trišović T, Stevanović J, Gvozdenović M. The influence of m-aminobenzoic acid on electrochemical synthesis and behavior of poly(aniline-co-(m-aminobenzoic acid). in Journal of Polymer Research. 2017;24(9).
doi:10.1007/s10965-017-1313-5 .

Jokić, Bojan, Džunuzović, Enis, Grgur, Branimir, Jugović, Branimir, Trišović, Tomislav, Stevanović, Jasmina, Gvozdenović, Milica, "The influence of m-aminobenzoic acid on electrochemical synthesis and behavior of poly(aniline-co-(m-aminobenzoic acid)" in Journal of Polymer Research, 24, no. 9 (2017),
https://doi.org/10.1007/s10965-017-1313-5 . .

TY  - JOUR
AU  - Šekularac, Gavrilo
AU  - Eraković, Sanja
AU  - Mijin, Dušan
AU  - Pavelkić, Vesna
AU  - Stevanović, Jasmina
AU  - Panić, Vladimir
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3586
AB  - For the preparation of RuO2 coatings on Ti substrate, the RuO2 was synthesized in acidic aqueous medium by simple one-step low temperature-controlled microwave (MW) irradiation. The physical composition of synthesized solid phase was analysed through particle size distribution (PSD), whereas the coating was investigated for its capacitive response and activity in oxygen evolution reaction (OER). The oxide phase was found highly polydisperse, with overlapped fractions within rather narrow particle size range and clear tendency toward agglomeration. The smallest particles and their best resolved fractions were synthesized at the temperature just above the boiling point of the reaction medium, and quite below the chloride-to-oxide conversion temperature. Consequently, the highest OER activity was registered for RuO2/Ti anodes prepared from this sample, with strong indication of different oxide structure, with respect to the electrodes prepared from samples synthesized at higher temperatures. However, the coatings from high temperature samples have considerably higher capacitance than those synthesized at lower temperatures. These findings can be rather correlated to the MW temperature-dependent oxide structure than to different morphology analysed through PSD.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Low-temperature-synthesized RuO2 from acidic chloride solution for the electrode coating applications
EP  - 709
IS  - 6
SP  - 695
VL  - 82
DO  - 10.2298/JSC161229040S
ER  - 

@article{
author = "Šekularac, Gavrilo and Eraković, Sanja and Mijin, Dušan and Pavelkić, Vesna and Stevanović, Jasmina and Panić, Vladimir",
year = "2017",
abstract = "For the preparation of RuO2 coatings on Ti substrate, the RuO2 was synthesized in acidic aqueous medium by simple one-step low temperature-controlled microwave (MW) irradiation. The physical composition of synthesized solid phase was analysed through particle size distribution (PSD), whereas the coating was investigated for its capacitive response and activity in oxygen evolution reaction (OER). The oxide phase was found highly polydisperse, with overlapped fractions within rather narrow particle size range and clear tendency toward agglomeration. The smallest particles and their best resolved fractions were synthesized at the temperature just above the boiling point of the reaction medium, and quite below the chloride-to-oxide conversion temperature. Consequently, the highest OER activity was registered for RuO2/Ti anodes prepared from this sample, with strong indication of different oxide structure, with respect to the electrodes prepared from samples synthesized at higher temperatures. However, the coatings from high temperature samples have considerably higher capacitance than those synthesized at lower temperatures. These findings can be rather correlated to the MW temperature-dependent oxide structure than to different morphology analysed through PSD.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Low-temperature-synthesized RuO2 from acidic chloride solution for the electrode coating applications",
pages = "709-695",
number = "6",
volume = "82",
doi = "10.2298/JSC161229040S"
}

Šekularac, G., Eraković, S., Mijin, D., Pavelkić, V., Stevanović, J.,& Panić, V.. (2017). Low-temperature-synthesized RuO2 from acidic chloride solution for the electrode coating applications. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 82(6), 695-709.
https://doi.org/10.2298/JSC161229040S

Šekularac G, Eraković S, Mijin D, Pavelkić V, Stevanović J, Panić V. Low-temperature-synthesized RuO2 from acidic chloride solution for the electrode coating applications. in Journal of the Serbian Chemical Society. 2017;82(6):695-709.
doi:10.2298/JSC161229040S .

Šekularac, Gavrilo, Eraković, Sanja, Mijin, Dušan, Pavelkić, Vesna, Stevanović, Jasmina, Panić, Vladimir, "Low-temperature-synthesized RuO2 from acidic chloride solution for the electrode coating applications" in Journal of the Serbian Chemical Society, 82, no. 6 (2017):695-709,
https://doi.org/10.2298/JSC161229040S . .

TY  - JOUR
AU  - Šešlija, Sanja
AU  - Veljović, Đorđe
AU  - Kalagasidis Krušić, Melina
AU  - Stevanović, Jasmina
AU  - Veličković, Sava
AU  - Popović, Ivanka
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3462
AB  - The aim of this work was to investigate the influence of specific anions on the cross-linking process of highly methoxylated pectin using the following copper salts CuSO4; Cu(C2H3O2)(2); CuCl2; and Cu(NO3)(2) wherein the initial salt concentrations were varied from 0.5 up to 10 g l(-1). It was found that the anions affected the sorption capacity wherein the Cu2+ sorption capacity from the sulphate solution was the highest, while it decreased in the presence of CH3COO-, Cl- and NO3- ions, respectively. This difference was mostly pronounced at the higher initial salt concentrations (co(Cu2+)  gt  2 g l(-1)). The obtained beads were characterized by FTIR, MS, SEM/EDS microanalysis and mechanical compression tests up to 80% of deformation. The sorption data were applied to the Langmuir and Freundlich isotherm models and various calculated parameters confirmed the sulphate anion supportive nature in metal ion binding. The value of the K-f parameter for the cross-linking process of pectin in the presence of acetate, chloride and nitrate was approximately the same (K-f approximate to 0.027 g g(-1)), while it was higher in the presence of sulphate anions by more than 20% (K-f = 0.0352 g g(-1)). The predicted 1/n values (1/n  lt  1, 1/n  gt  1, 1/n = 1 for the sulphate, nitrate and acetate, and chloride anions, respectively) were the quantitative confirmation of the specific interactions involved in the cross-linking mechanism caused by different anions. The established anion influence was in accordance with the typical ion-specific influence on macromolecules in aqueous systems proposed by Hofmeister.
PB  - Royal Soc Chemistry, Cambridge
T2  - New Journal of Chemistry
T1  - Cross-linking of highly methoxylated pectin with copper: the specific anion influence
EP  - 1625
IS  - 2
SP  - 1618
VL  - 40
DO  - 10.1039/c5nj03320a
ER  - 

@article{
author = "Šešlija, Sanja and Veljović, Đorđe and Kalagasidis Krušić, Melina and Stevanović, Jasmina and Veličković, Sava and Popović, Ivanka",
year = "2016",
abstract = "The aim of this work was to investigate the influence of specific anions on the cross-linking process of highly methoxylated pectin using the following copper salts CuSO4; Cu(C2H3O2)(2); CuCl2; and Cu(NO3)(2) wherein the initial salt concentrations were varied from 0.5 up to 10 g l(-1). It was found that the anions affected the sorption capacity wherein the Cu2+ sorption capacity from the sulphate solution was the highest, while it decreased in the presence of CH3COO-, Cl- and NO3- ions, respectively. This difference was mostly pronounced at the higher initial salt concentrations (co(Cu2+)  gt  2 g l(-1)). The obtained beads were characterized by FTIR, MS, SEM/EDS microanalysis and mechanical compression tests up to 80% of deformation. The sorption data were applied to the Langmuir and Freundlich isotherm models and various calculated parameters confirmed the sulphate anion supportive nature in metal ion binding. The value of the K-f parameter for the cross-linking process of pectin in the presence of acetate, chloride and nitrate was approximately the same (K-f approximate to 0.027 g g(-1)), while it was higher in the presence of sulphate anions by more than 20% (K-f = 0.0352 g g(-1)). The predicted 1/n values (1/n  lt  1, 1/n  gt  1, 1/n = 1 for the sulphate, nitrate and acetate, and chloride anions, respectively) were the quantitative confirmation of the specific interactions involved in the cross-linking mechanism caused by different anions. The established anion influence was in accordance with the typical ion-specific influence on macromolecules in aqueous systems proposed by Hofmeister.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "New Journal of Chemistry",
title = "Cross-linking of highly methoxylated pectin with copper: the specific anion influence",
pages = "1625-1618",
number = "2",
volume = "40",
doi = "10.1039/c5nj03320a"
}

Šešlija, S., Veljović, Đ., Kalagasidis Krušić, M., Stevanović, J., Veličković, S.,& Popović, I.. (2016). Cross-linking of highly methoxylated pectin with copper: the specific anion influence. in New Journal of Chemistry
Royal Soc Chemistry, Cambridge., 40(2), 1618-1625.
https://doi.org/10.1039/c5nj03320a

Šešlija S, Veljović Đ, Kalagasidis Krušić M, Stevanović J, Veličković S, Popović I. Cross-linking of highly methoxylated pectin with copper: the specific anion influence. in New Journal of Chemistry. 2016;40(2):1618-1625.
doi:10.1039/c5nj03320a .

Šešlija, Sanja, Veljović, Đorđe, Kalagasidis Krušić, Melina, Stevanović, Jasmina, Veličković, Sava, Popović, Ivanka, "Cross-linking of highly methoxylated pectin with copper: the specific anion influence" in New Journal of Chemistry, 40, no. 2 (2016):1618-1625,
https://doi.org/10.1039/c5nj03320a . .

TY  - JOUR
AU  - Bobić, Biljana
AU  - Jegdić, Bore
AU  - Jugović, Branimir
AU  - Stevanović, Jasmina
AU  - Gligorijević, Bojan
AU  - Murariu, Alin
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3171
AB  - Causes of failure of brass condenser tubes (CuZn28Sn1) in a thermal power plant in Serbia are analysed. Results of testing by Fourier transformed infrared spectroscopy (FTIR) have indicated the presence of ammonia and nitrogen compounds on fracture surfaces and on the inner surface of the tubes. These compounds are specific agents that cause stress corrosion cracking (SCC) in brass. Analysis of fracture surfaces using scanning electron microscopy (SEM) has shown the brittle transgranular fracture due to the occurrence of SCC. The resistance of brass condenser tubes to other types of corrosion, such as erosion, general and selective corrosion (dezincification) is also considered. Some procedures are proposed to reduce the risk of SCC in the brass condenser tubes.
PB  - Society for Structural Integrity and Life, Institute for Material Testing
T2  - Structural Integrity and Life
T1  - Failures of brass condenser tubes
EP  - 23
IS  - 1
SP  - 19
VL  - 16
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3171
ER  - 

@article{
author = "Bobić, Biljana and Jegdić, Bore and Jugović, Branimir and Stevanović, Jasmina and Gligorijević, Bojan and Murariu, Alin",
year = "2016",
abstract = "Causes of failure of brass condenser tubes (CuZn28Sn1) in a thermal power plant in Serbia are analysed. Results of testing by Fourier transformed infrared spectroscopy (FTIR) have indicated the presence of ammonia and nitrogen compounds on fracture surfaces and on the inner surface of the tubes. These compounds are specific agents that cause stress corrosion cracking (SCC) in brass. Analysis of fracture surfaces using scanning electron microscopy (SEM) has shown the brittle transgranular fracture due to the occurrence of SCC. The resistance of brass condenser tubes to other types of corrosion, such as erosion, general and selective corrosion (dezincification) is also considered. Some procedures are proposed to reduce the risk of SCC in the brass condenser tubes.",
publisher = "Society for Structural Integrity and Life, Institute for Material Testing",
journal = "Structural Integrity and Life",
title = "Failures of brass condenser tubes",
pages = "23-19",
number = "1",
volume = "16",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3171"
}

Bobić, B., Jegdić, B., Jugović, B., Stevanović, J., Gligorijević, B.,& Murariu, A.. (2016). Failures of brass condenser tubes. in Structural Integrity and Life
Society for Structural Integrity and Life, Institute for Material Testing., 16(1), 19-23.
https://hdl.handle.net/21.15107/rcub_technorep_3171

Bobić B, Jegdić B, Jugović B, Stevanović J, Gligorijević B, Murariu A. Failures of brass condenser tubes. in Structural Integrity and Life. 2016;16(1):19-23.
https://hdl.handle.net/21.15107/rcub_technorep_3171 .

Bobić, Biljana, Jegdić, Bore, Jugović, Branimir, Stevanović, Jasmina, Gligorijević, Bojan, Murariu, Alin, "Failures of brass condenser tubes" in Structural Integrity and Life, 16, no. 1 (2016):19-23,
https://hdl.handle.net/21.15107/rcub_technorep_3171 .

TY  - JOUR
AU  - Bobić, Biljana
AU  - Jegdić, Bore
AU  - Jugović, Branimir
AU  - Stevanović, Jasmina
AU  - Gligorijević, Bojan
AU  - Murariu, Alin
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3180
AB  - Causes of failure of brass condenser tubes (CuZn28Sn1) in a thermal power plant in Serbia are analysed. Results of testing by Fourier transformed infrared spectroscopy (FTIR) have indicated the presence of ammonia and nitro- gen compounds on fracture surfaces and on the inner surface of the tubes. These compounds are specific agents that cause stress corrosion cracking (SCC) in brass. Analy- sis of fracture surfaces using scanning electron microscopy (SEM) has shown the brittle transgranular fracture due to the occurrence of SCC. The resistance of brass condenser tubes to other types of corrosion, such as erosion, general and selective corrosion (dezincification) is also considered. Some procedures are proposed to reduce the risk of SCC in the brass condenser tubes.
AB  - Analizirani su uzroci pojave loma kondenzatorskih cevi od mesinga CuZn28Sn1 u jednoj termoelektrani u Srbiji. Rezultati ispitivanja metodom Furijeove transformisane infracrvene spektroskopije (FTIR) ukazuju na prisustvo amonijačnih i azotnih jedinjenja na površini loma i na unutrašnjoj površini cevi. Ta jedinjenja su specifični agensi za pojavu naponske korozije mesinga. Analiza površine loma primenom skening elektronske mikroskopije (SEM) pokazala je prisustvo krtog transkistalnog loma nastalog usled pojave naponske korozije. Razmatrana je otpornost cevi od mesinga CuZn28Sn1 prema drugim vidovima koro- zije, kao što su eroziona, opšta i selektivna korozija (decin- kacija). Predloženi su postupci za smanjenje rizika od pojave naponske korozije u kondenzatorskim cevima.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life
T1  - Failures of Brass Condenser Tubes
T1  - Lomovi kondenzatorskih cevi od mesinga
EP  - 23
IS  - 1
SP  - 19
VL  - 16
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3180
ER  - 

@article{
author = "Bobić, Biljana and Jegdić, Bore and Jugović, Branimir and Stevanović, Jasmina and Gligorijević, Bojan and Murariu, Alin",
year = "2016",
abstract = "Causes of failure of brass condenser tubes (CuZn28Sn1) in a thermal power plant in Serbia are analysed. Results of testing by Fourier transformed infrared spectroscopy (FTIR) have indicated the presence of ammonia and nitro- gen compounds on fracture surfaces and on the inner surface of the tubes. These compounds are specific agents that cause stress corrosion cracking (SCC) in brass. Analy- sis of fracture surfaces using scanning electron microscopy (SEM) has shown the brittle transgranular fracture due to the occurrence of SCC. The resistance of brass condenser tubes to other types of corrosion, such as erosion, general and selective corrosion (dezincification) is also considered. Some procedures are proposed to reduce the risk of SCC in the brass condenser tubes., Analizirani su uzroci pojave loma kondenzatorskih cevi od mesinga CuZn28Sn1 u jednoj termoelektrani u Srbiji. Rezultati ispitivanja metodom Furijeove transformisane infracrvene spektroskopije (FTIR) ukazuju na prisustvo amonijačnih i azotnih jedinjenja na površini loma i na unutrašnjoj površini cevi. Ta jedinjenja su specifični agensi za pojavu naponske korozije mesinga. Analiza površine loma primenom skening elektronske mikroskopije (SEM) pokazala je prisustvo krtog transkistalnog loma nastalog usled pojave naponske korozije. Razmatrana je otpornost cevi od mesinga CuZn28Sn1 prema drugim vidovima koro- zije, kao što su eroziona, opšta i selektivna korozija (decin- kacija). Predloženi su postupci za smanjenje rizika od pojave naponske korozije u kondenzatorskim cevima.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life",
title = "Failures of Brass Condenser Tubes, Lomovi kondenzatorskih cevi od mesinga",
pages = "23-19",
number = "1",
volume = "16",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3180"
}

Bobić, B., Jegdić, B., Jugović, B., Stevanović, J., Gligorijević, B.,& Murariu, A.. (2016). Failures of Brass Condenser Tubes. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 16(1), 19-23.
https://hdl.handle.net/21.15107/rcub_technorep_3180

Bobić B, Jegdić B, Jugović B, Stevanović J, Gligorijević B, Murariu A. Failures of Brass Condenser Tubes. in Structural Integrity and Life. 2016;16(1):19-23.
https://hdl.handle.net/21.15107/rcub_technorep_3180 .

Bobić, Biljana, Jegdić, Bore, Jugović, Branimir, Stevanović, Jasmina, Gligorijević, Bojan, Murariu, Alin, "Failures of Brass Condenser Tubes" in Structural Integrity and Life, 16, no. 1 (2016):19-23,
https://hdl.handle.net/21.15107/rcub_technorep_3180 .

TY  - CHAP
AU  - Šerbula, S.M.
AU  - Milosavljević, J.S.
AU  - Kalinović, T.S.
AU  - Radojević, A.A.
AU  - Kalinović, J.V.
AU  - Bugarski, Branko
AU  - Stevanović, Jasmina
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3170
AB  - Bioaerosols (biological particles derived from viruses, bacteria, fungi, plants and animals) are ubiquitous in the air. This organic dust is considered to be hazardous to human health. Acute and chronic diseases are health risks associated with viable and non-viable airborne biological particles because they can be toxic, allergenic and infectious. With increasing awareness of the environmental impact of bioaerosols, which can spread easily with air currents over long distances, the development of efficient air filtration system is important for preventing health risks. Air filtration system is the most used method for controlling air pollution with bioaerosols but it is not always efficient because microbes can survive and proliferate on the surface of filters and be potential sources of diseases and allergies. Lately, many researchers have focused on improving indoor air quality by removing and inactivating biological agents. Successful methods for control and inactivation of bioaerosols include filters coated with antimicrobial nanoparticles from different plants, such as Sophora flavescens, Euscapis japonica or Melaleuca alternifolia. Filters coated with plant extracts have filtration efficiency from 77 to 99%, while the range for antimicrobial activity for these filters is from 14 to 100%. These natural products are considered ecological, environmentally friendly, cost-effective, less toxic (compared with inorganic nanomaterials) and efficient material for antimicrobial filter media development and can be easily applied to conventional air-conditioning systems.
T2  - Air Pollution: Management Strategies, Environmental Impact and Health Risks
T1  - Bioaerosols: Methods for reducing health risks and impact on the environment
EP  - 98
SP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3170
ER  - 

@inbook{
author = "Šerbula, S.M. and Milosavljević, J.S. and Kalinović, T.S. and Radojević, A.A. and Kalinović, J.V. and Bugarski, Branko and Stevanović, Jasmina",
year = "2016",
abstract = "Bioaerosols (biological particles derived from viruses, bacteria, fungi, plants and animals) are ubiquitous in the air. This organic dust is considered to be hazardous to human health. Acute and chronic diseases are health risks associated with viable and non-viable airborne biological particles because they can be toxic, allergenic and infectious. With increasing awareness of the environmental impact of bioaerosols, which can spread easily with air currents over long distances, the development of efficient air filtration system is important for preventing health risks. Air filtration system is the most used method for controlling air pollution with bioaerosols but it is not always efficient because microbes can survive and proliferate on the surface of filters and be potential sources of diseases and allergies. Lately, many researchers have focused on improving indoor air quality by removing and inactivating biological agents. Successful methods for control and inactivation of bioaerosols include filters coated with antimicrobial nanoparticles from different plants, such as Sophora flavescens, Euscapis japonica or Melaleuca alternifolia. Filters coated with plant extracts have filtration efficiency from 77 to 99%, while the range for antimicrobial activity for these filters is from 14 to 100%. These natural products are considered ecological, environmentally friendly, cost-effective, less toxic (compared with inorganic nanomaterials) and efficient material for antimicrobial filter media development and can be easily applied to conventional air-conditioning systems.",
journal = "Air Pollution: Management Strategies, Environmental Impact and Health Risks",
booktitle = "Bioaerosols: Methods for reducing health risks and impact on the environment",
pages = "98-69",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3170"
}

Šerbula, S.M., Milosavljević, J.S., Kalinović, T.S., Radojević, A.A., Kalinović, J.V., Bugarski, B.,& Stevanović, J.. (2016). Bioaerosols: Methods for reducing health risks and impact on the environment. in Air Pollution: Management Strategies, Environmental Impact and Health Risks, 69-98.
https://hdl.handle.net/21.15107/rcub_technorep_3170

Šerbula S, Milosavljević J, Kalinović T, Radojević A, Kalinović J, Bugarski B, Stevanović J. Bioaerosols: Methods for reducing health risks and impact on the environment. in Air Pollution: Management Strategies, Environmental Impact and Health Risks. 2016;:69-98.
https://hdl.handle.net/21.15107/rcub_technorep_3170 .

Šerbula, S.M., Milosavljević, J.S., Kalinović, T.S., Radojević, A.A., Kalinović, J.V., Bugarski, Branko, Stevanović, Jasmina, "Bioaerosols: Methods for reducing health risks and impact on the environment" in Air Pollution: Management Strategies, Environmental Impact and Health Risks (2016):69-98,
https://hdl.handle.net/21.15107/rcub_technorep_3170 .

TY  - JOUR
AU  - Jugović, Branimir
AU  - Grgur, Branimir
AU  - Antov, Mirjana
AU  - Knežević-Jugović, Zorica
AU  - Stevanović, Jasmina
AU  - Gvozdenović, Milica
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3184
AB  - Polypyrrole enzyme electrode was formed by immobilization of glucose oxidase via glutaraldehyde into electrochemically synthesized polypyrrole on glassy carbon electrode. Electrochemical synthesis was performed in 0.5 mol dm(-3) HCl and 0.2 mol dm(-3) pyrrole at constant current density of 2 mA cm(-2). Chronopotentiometric curves of polypyrrole enzyme electrode were recorded at current density of 42 nA cm(-2) for different glucose concentrations. The determined value of the apparent Michaelis-Menten constant was 0.045 mmol dm(-3) which is significantly lower than that of free enzyme indicating enhanced enzyme efficiency when it is immobilized into electroconducting polymer matrix.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Polypyrrole-based Enzyme Electrode with Immobilized Glucose Oxidase for Electrochemical Determination of Glucose
EP  - 1161
IS  - 2
SP  - 1152
VL  - 11
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3184
ER  - 

@article{
author = "Jugović, Branimir and Grgur, Branimir and Antov, Mirjana and Knežević-Jugović, Zorica and Stevanović, Jasmina and Gvozdenović, Milica",
year = "2016",
abstract = "Polypyrrole enzyme electrode was formed by immobilization of glucose oxidase via glutaraldehyde into electrochemically synthesized polypyrrole on glassy carbon electrode. Electrochemical synthesis was performed in 0.5 mol dm(-3) HCl and 0.2 mol dm(-3) pyrrole at constant current density of 2 mA cm(-2). Chronopotentiometric curves of polypyrrole enzyme electrode were recorded at current density of 42 nA cm(-2) for different glucose concentrations. The determined value of the apparent Michaelis-Menten constant was 0.045 mmol dm(-3) which is significantly lower than that of free enzyme indicating enhanced enzyme efficiency when it is immobilized into electroconducting polymer matrix.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Polypyrrole-based Enzyme Electrode with Immobilized Glucose Oxidase for Electrochemical Determination of Glucose",
pages = "1161-1152",
number = "2",
volume = "11",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3184"
}

Jugović, B., Grgur, B., Antov, M., Knežević-Jugović, Z., Stevanović, J.,& Gvozdenović, M.. (2016). Polypyrrole-based Enzyme Electrode with Immobilized Glucose Oxidase for Electrochemical Determination of Glucose. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 11(2), 1152-1161.
https://hdl.handle.net/21.15107/rcub_technorep_3184

Jugović B, Grgur B, Antov M, Knežević-Jugović Z, Stevanović J, Gvozdenović M. Polypyrrole-based Enzyme Electrode with Immobilized Glucose Oxidase for Electrochemical Determination of Glucose. in International Journal of Electrochemical Science. 2016;11(2):1152-1161.
https://hdl.handle.net/21.15107/rcub_technorep_3184 .

Jugović, Branimir, Grgur, Branimir, Antov, Mirjana, Knežević-Jugović, Zorica, Stevanović, Jasmina, Gvozdenović, Milica, "Polypyrrole-based Enzyme Electrode with Immobilized Glucose Oxidase for Electrochemical Determination of Glucose" in International Journal of Electrochemical Science, 11, no. 2 (2016):1152-1161,
https://hdl.handle.net/21.15107/rcub_technorep_3184 .

TY  - JOUR
AU  - Popović, Nataša
AU  - Jugović, Branimir
AU  - Jokić, Bojan
AU  - Knežević-Jugović, Zorica
AU  - Stevanović, Jasmina
AU  - Grgur, Branimir
AU  - Gvozdenović, Milica
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3007
AB  - Electrochemical formation of polyaniline (PANI) modified electrode was performed galvanostatically from aqueous solution of 1.0 mol dm(-3) HCl containing 0.2 mol dm(-3) aniline at current densities ranging from 0.5-3.0 mA cm(-2). The morphology of PANI electrode consisted of highly developed nanofibrous network with electrocatalytic features towards oxidation of ascorbic acid, reflected in increase of the peak current similar to 2.5 times and shift of the oxidation potential by 0.32 V to less positive values. Response of PANI modified electrode was obtained from anodic LSV curves. Current peak potentials decreased with increase of pH with slope of similar to 32 mV pH(-1), indicating two electron charge transfer process with liberation of one proton characteristic of an electrochemical reaction followed by a chemical step.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination
EP  - 1220
IS  - 2
SP  - 1208
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3007
ER  - 

@article{
author = "Popović, Nataša and Jugović, Branimir and Jokić, Bojan and Knežević-Jugović, Zorica and Stevanović, Jasmina and Grgur, Branimir and Gvozdenović, Milica",
year = "2015",
abstract = "Electrochemical formation of polyaniline (PANI) modified electrode was performed galvanostatically from aqueous solution of 1.0 mol dm(-3) HCl containing 0.2 mol dm(-3) aniline at current densities ranging from 0.5-3.0 mA cm(-2). The morphology of PANI electrode consisted of highly developed nanofibrous network with electrocatalytic features towards oxidation of ascorbic acid, reflected in increase of the peak current similar to 2.5 times and shift of the oxidation potential by 0.32 V to less positive values. Response of PANI modified electrode was obtained from anodic LSV curves. Current peak potentials decreased with increase of pH with slope of similar to 32 mV pH(-1), indicating two electron charge transfer process with liberation of one proton characteristic of an electrochemical reaction followed by a chemical step.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination",
pages = "1220-1208",
number = "2",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3007"
}

Popović, N., Jugović, B., Jokić, B., Knežević-Jugović, Z., Stevanović, J., Grgur, B.,& Gvozdenović, M.. (2015). Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 10(2), 1208-1220.
https://hdl.handle.net/21.15107/rcub_technorep_3007

Popović N, Jugović B, Jokić B, Knežević-Jugović Z, Stevanović J, Grgur B, Gvozdenović M. Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination. in International Journal of Electrochemical Science. 2015;10(2):1208-1220.
https://hdl.handle.net/21.15107/rcub_technorep_3007 .

Popović, Nataša, Jugović, Branimir, Jokić, Bojan, Knežević-Jugović, Zorica, Stevanović, Jasmina, Grgur, Branimir, Gvozdenović, Milica, "Electrochemical Template-Free Synthesis of Nanofibrous Polyaniline Modified Electrode for Ascorbic Acid Determination" in International Journal of Electrochemical Science, 10, no. 2 (2015):1208-1220,
https://hdl.handle.net/21.15107/rcub_technorep_3007 .

TY  - JOUR
AU  - Marković, Radmila
AU  - Gardić, Vojka
AU  - Obradović, Ljubiša
AU  - Đorđievski, Stefan
AU  - Stevanović, Zoran
AU  - Stevanović, Jasmina
AU  - Gvozdenović, Milica
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3097
AB  - A natural zeolite from Serbia was employed for the removal of heavy metals from acid mine drainage (AMD) generated in the area of copper mine. The efficiency of the natural zeolite samples was tested on AMD that contained manganese, copper, zinc, nickel and cadmium ions in the concentrations above the maximal allowed, according to existing legislation. The results of X-ray diffraction (XRD) analyses of natural zeolite having a particle size of -1 + 0.3 mm, confirmed that the clinoptilolite (Al1.6H30Ca2.06O4756Si164) is a dominant mineral of mine tuff. A dynamic method was used for the experiments in order to simulate real conditions in an industrially relevant environment. The effect of the flow rate of AMD, type of columns and zeolite classes on the degree of adsorption of the heavy metals from AMD was investigated. The results of chemical analyses of treated AMD samples at a flow rate of 0.0033 dm(3)s(-1) which corresponds to the spontaneous outflow from the real accumulation indicate that concentrations of heavy metals are not decreased below that allowed for defined recipient class, except for copper. Also, these results show that the heavy metal ion removal serie for the industrially relevant environment can be given as: Cu  gt  Zn  gt  Cd  gt  Mn  gt  Ni.
PB  - Japan Inst Metals & Materials, Sendai
T2  - Materials Transactions
T1  - The Application of a Natural Zeolite for Acid Mine Drainage Purification
EP  - 2057
IS  - 12
SP  - 2053
VL  - 56
DO  - 10.2320/matertrans.M2015292
ER  - 

@article{
author = "Marković, Radmila and Gardić, Vojka and Obradović, Ljubiša and Đorđievski, Stefan and Stevanović, Zoran and Stevanović, Jasmina and Gvozdenović, Milica",
year = "2015",
abstract = "A natural zeolite from Serbia was employed for the removal of heavy metals from acid mine drainage (AMD) generated in the area of copper mine. The efficiency of the natural zeolite samples was tested on AMD that contained manganese, copper, zinc, nickel and cadmium ions in the concentrations above the maximal allowed, according to existing legislation. The results of X-ray diffraction (XRD) analyses of natural zeolite having a particle size of -1 + 0.3 mm, confirmed that the clinoptilolite (Al1.6H30Ca2.06O4756Si164) is a dominant mineral of mine tuff. A dynamic method was used for the experiments in order to simulate real conditions in an industrially relevant environment. The effect of the flow rate of AMD, type of columns and zeolite classes on the degree of adsorption of the heavy metals from AMD was investigated. The results of chemical analyses of treated AMD samples at a flow rate of 0.0033 dm(3)s(-1) which corresponds to the spontaneous outflow from the real accumulation indicate that concentrations of heavy metals are not decreased below that allowed for defined recipient class, except for copper. Also, these results show that the heavy metal ion removal serie for the industrially relevant environment can be given as: Cu  gt  Zn  gt  Cd  gt  Mn  gt  Ni.",
publisher = "Japan Inst Metals & Materials, Sendai",
journal = "Materials Transactions",
title = "The Application of a Natural Zeolite for Acid Mine Drainage Purification",
pages = "2057-2053",
number = "12",
volume = "56",
doi = "10.2320/matertrans.M2015292"
}

Marković, R., Gardić, V., Obradović, L., Đorđievski, S., Stevanović, Z., Stevanović, J.,& Gvozdenović, M.. (2015). The Application of a Natural Zeolite for Acid Mine Drainage Purification. in Materials Transactions
Japan Inst Metals & Materials, Sendai., 56(12), 2053-2057.
https://doi.org/10.2320/matertrans.M2015292

Marković R, Gardić V, Obradović L, Đorđievski S, Stevanović Z, Stevanović J, Gvozdenović M. The Application of a Natural Zeolite for Acid Mine Drainage Purification. in Materials Transactions. 2015;56(12):2053-2057.
doi:10.2320/matertrans.M2015292 .

Marković, Radmila, Gardić, Vojka, Obradović, Ljubiša, Đorđievski, Stefan, Stevanović, Zoran, Stevanović, Jasmina, Gvozdenović, Milica, "The Application of a Natural Zeolite for Acid Mine Drainage Purification" in Materials Transactions, 56, no. 12 (2015):2053-2057,
https://doi.org/10.2320/matertrans.M2015292 . .

TY  - JOUR
AU  - Nedeljković, Dragutin
AU  - Stevanović, Marija P.
AU  - Stijepović, Mirko
AU  - Stajčić, Aleksandar
AU  - Grujić, Aleksandar
AU  - Stajić-Trošić, Jasna
AU  - Stevanović, Jasmina
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3063
AB  - The aim of this study was to construct a polymer-based mixed matrix membrane that could be used for waste gases treatment. Therefore, high permeability for the carbon dioxide and low permeability for other gases commonly present in the industrial combustion waste gases (nitrogen, oxygen, hydrogen and methane) are essential. These membranes belong to the group of dense composite membranes, whose separation is based on the solutiondiffusion mechanism. In this paper, feasibility of the application of poly(ethylene oxide)-copoly(phtalamide) was tested. In order to enhance the permeability of carbon dioxide, three different zeolites with two-dimensional pores (IHW, NS/ and TER) were incorporated, and in order to improve compatibility between the inorganic particles and polymer chains, n-tetradecyldimethylamonium bromide (NTAB) was added. The best results in carbon dioxide/hydrogen selectivity were obtained with the membrane constructed with PEBAX 1657 and surface treated zeolites, while better results concerning selectivity were gained with membranes based on Polyactive.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - The possibility of application of zeolyte powders for the construction of membranes for carbon dioxide separation
EP  - 284
IS  - 2
SP  - 277
VL  - 21
DO  - 10.2298/CICEQ130924025N
ER  - 

@article{
author = "Nedeljković, Dragutin and Stevanović, Marija P. and Stijepović, Mirko and Stajčić, Aleksandar and Grujić, Aleksandar and Stajić-Trošić, Jasna and Stevanović, Jasmina",
year = "2015",
abstract = "The aim of this study was to construct a polymer-based mixed matrix membrane that could be used for waste gases treatment. Therefore, high permeability for the carbon dioxide and low permeability for other gases commonly present in the industrial combustion waste gases (nitrogen, oxygen, hydrogen and methane) are essential. These membranes belong to the group of dense composite membranes, whose separation is based on the solutiondiffusion mechanism. In this paper, feasibility of the application of poly(ethylene oxide)-copoly(phtalamide) was tested. In order to enhance the permeability of carbon dioxide, three different zeolites with two-dimensional pores (IHW, NS/ and TER) were incorporated, and in order to improve compatibility between the inorganic particles and polymer chains, n-tetradecyldimethylamonium bromide (NTAB) was added. The best results in carbon dioxide/hydrogen selectivity were obtained with the membrane constructed with PEBAX 1657 and surface treated zeolites, while better results concerning selectivity were gained with membranes based on Polyactive.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "The possibility of application of zeolyte powders for the construction of membranes for carbon dioxide separation",
pages = "284-277",
number = "2",
volume = "21",
doi = "10.2298/CICEQ130924025N"
}

Nedeljković, D., Stevanović, M. P., Stijepović, M., Stajčić, A., Grujić, A., Stajić-Trošić, J.,& Stevanović, J.. (2015). The possibility of application of zeolyte powders for the construction of membranes for carbon dioxide separation. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 21(2), 277-284.
https://doi.org/10.2298/CICEQ130924025N

Nedeljković D, Stevanović MP, Stijepović M, Stajčić A, Grujić A, Stajić-Trošić J, Stevanović J. The possibility of application of zeolyte powders for the construction of membranes for carbon dioxide separation. in Chemical Industry & Chemical Engineering Quarterly. 2015;21(2):277-284.
doi:10.2298/CICEQ130924025N .

Nedeljković, Dragutin, Stevanović, Marija P., Stijepović, Mirko, Stajčić, Aleksandar, Grujić, Aleksandar, Stajić-Trošić, Jasna, Stevanović, Jasmina, "The possibility of application of zeolyte powders for the construction of membranes for carbon dioxide separation" in Chemical Industry & Chemical Engineering Quarterly, 21, no. 2 (2015):277-284,
https://doi.org/10.2298/CICEQ130924025N . .

TY  - JOUR
AU  - Nikolić, Nebojša D.
AU  - Živković, Predrag M.
AU  - Jokić, Bojan
AU  - Pavlović, Miomir
AU  - Stevanović, Jasmina
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5766
AB  - The polarization and morphological characteristics of powder forms of the group of the intermediate metals were examined by the analysis of silver and copper electrodeposition processes at high overpotentials. The pine-like dendrites constructed from the corncob-like forms, which are very similar to each other, were obtained by electrodeposition of these metals at the overpotential belonging to the plateaus of the limiting diffusion current density. A completely different situation was observed by the electrodeposition of silver and copper at the overpotential outside the plateaus of the limiting diffusion current density in the zone with the fast increase in current density with the overpotential. Silver dendrites, which were very similar to silver and copper dendrites obtained inside the plateaus of the limiting diffusion current density, were obtained at the overpotential outside the plateau. Due to the lower overpotential for hydrogen evolution for copper, hydrogen produced during the copper electrodeposition process strongly affected the surface morphology of copper. The same shape polarization curves with completely different surface morphologies of Cu and Ag electrodeposited at overpotentials after the inflection point clearly indicate the importance of morphological analysis in the investigation of polarization characteristics of the electrodeposition systems. The role of hydrogen as a crucial parameter in the continuous change of copper surface morphology from dendrites to honeycomb-like structures was investigated in detail. On the basis of this analysis, the transitional character of the intermediate metals between the normal and inert metals was considered. The typical powder forms characterising electrodeposition of the intermediate metals were also defined and systematized.
PB  - Macedonian Journal of Chemistry and Chemical Engineering
T2  - Macedonian Journal of Chemistry and Chemical Engineering
T1  - Comparative analysis of the polarization and morphological characteristics of electrochemically produced powder forms of the intermediate metals
EP  - 180
IS  - 2
SP  - 169
VL  - 33
UR  - https://hdl.handle.net/21.15107/rcub_cer_1482
ER  - 

@article{
author = "Nikolić, Nebojša D. and Živković, Predrag M. and Jokić, Bojan and Pavlović, Miomir and Stevanović, Jasmina",
year = "2014",
abstract = "The polarization and morphological characteristics of powder forms of the group of the intermediate metals were examined by the analysis of silver and copper electrodeposition processes at high overpotentials. The pine-like dendrites constructed from the corncob-like forms, which are very similar to each other, were obtained by electrodeposition of these metals at the overpotential belonging to the plateaus of the limiting diffusion current density. A completely different situation was observed by the electrodeposition of silver and copper at the overpotential outside the plateaus of the limiting diffusion current density in the zone with the fast increase in current density with the overpotential. Silver dendrites, which were very similar to silver and copper dendrites obtained inside the plateaus of the limiting diffusion current density, were obtained at the overpotential outside the plateau. Due to the lower overpotential for hydrogen evolution for copper, hydrogen produced during the copper electrodeposition process strongly affected the surface morphology of copper. The same shape polarization curves with completely different surface morphologies of Cu and Ag electrodeposited at overpotentials after the inflection point clearly indicate the importance of morphological analysis in the investigation of polarization characteristics of the electrodeposition systems. The role of hydrogen as a crucial parameter in the continuous change of copper surface morphology from dendrites to honeycomb-like structures was investigated in detail. On the basis of this analysis, the transitional character of the intermediate metals between the normal and inert metals was considered. The typical powder forms characterising electrodeposition of the intermediate metals were also defined and systematized.",
publisher = "Macedonian Journal of Chemistry and Chemical Engineering",
journal = "Macedonian Journal of Chemistry and Chemical Engineering",
title = "Comparative analysis of the polarization and morphological characteristics of electrochemically produced powder forms of the intermediate metals",
pages = "180-169",
number = "2",
volume = "33",
url = "https://hdl.handle.net/21.15107/rcub_cer_1482"
}

Nikolić, N. D., Živković, P. M., Jokić, B., Pavlović, M.,& Stevanović, J.. (2014). Comparative analysis of the polarization and morphological characteristics of electrochemically produced powder forms of the intermediate metals. in Macedonian Journal of Chemistry and Chemical Engineering
Macedonian Journal of Chemistry and Chemical Engineering., 33(2), 169-180.
https://hdl.handle.net/21.15107/rcub_cer_1482

Nikolić ND, Živković PM, Jokić B, Pavlović M, Stevanović J. Comparative analysis of the polarization and morphological characteristics of electrochemically produced powder forms of the intermediate metals. in Macedonian Journal of Chemistry and Chemical Engineering. 2014;33(2):169-180.
https://hdl.handle.net/21.15107/rcub_cer_1482 .

Nikolić, Nebojša D., Živković, Predrag M., Jokić, Bojan, Pavlović, Miomir, Stevanović, Jasmina, "Comparative analysis of the polarization and morphological characteristics of electrochemically produced powder forms of the intermediate metals" in Macedonian Journal of Chemistry and Chemical Engineering, 33, no. 2 (2014):169-180,
https://hdl.handle.net/21.15107/rcub_cer_1482 .

TY  - CONF
AU  - Gvozdenović, Milica
AU  - Popović, N.
AU  - Stevanović, Jasmina
AU  - Grgur, Branimir
AU  - Trišović, Tomislav
AU  - Jugović, Branimir
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2589
AB  - Electroconducting polymers are promising materials to be used in various fields including: batteries, capacitors, electronic devices, corrosion, biosensors and sensors[1,6]. Polyaniline is probably the most investigated electroconducting polymer, due to low cost monomer, conductivity, environmental stability. Polyaniline can be obtained by chemical or electrochemical oxidative polymerization of aniline. Electrochemical synthesis is performed in anodic process directly from acidic aqueous electrolyte containing aniline. Polyaniline can be used as electrode material for electrochemical determination of ascorbic acid based on electrocatalytic oxidation of ascorbic acid.
PB  - Tatranské Matliare : Slovak Society of Chemical Engineering
C3  - Proceedings of the 41st International Conference of Slovak Society of Chemical Engineering
T1  - Electrochemical determination of ascorbic acid using electrochemically deposited polyaniline
EP  - 657
SP  - 654
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2589
ER  - 

@conference{
author = "Gvozdenović, Milica and Popović, N. and Stevanović, Jasmina and Grgur, Branimir and Trišović, Tomislav and Jugović, Branimir",
year = "2014",
abstract = "Electroconducting polymers are promising materials to be used in various fields including: batteries, capacitors, electronic devices, corrosion, biosensors and sensors[1,6]. Polyaniline is probably the most investigated electroconducting polymer, due to low cost monomer, conductivity, environmental stability. Polyaniline can be obtained by chemical or electrochemical oxidative polymerization of aniline. Electrochemical synthesis is performed in anodic process directly from acidic aqueous electrolyte containing aniline. Polyaniline can be used as electrode material for electrochemical determination of ascorbic acid based on electrocatalytic oxidation of ascorbic acid.",
publisher = "Tatranské Matliare : Slovak Society of Chemical Engineering",
journal = "Proceedings of the 41st International Conference of Slovak Society of Chemical Engineering",
title = "Electrochemical determination of ascorbic acid using electrochemically deposited polyaniline",
pages = "657-654",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2589"
}

Gvozdenović, M., Popović, N., Stevanović, J., Grgur, B., Trišović, T.,& Jugović, B.. (2014). Electrochemical determination of ascorbic acid using electrochemically deposited polyaniline. in Proceedings of the 41st International Conference of Slovak Society of Chemical Engineering
Tatranské Matliare : Slovak Society of Chemical Engineering., 654-657.
https://hdl.handle.net/21.15107/rcub_technorep_2589

Gvozdenović M, Popović N, Stevanović J, Grgur B, Trišović T, Jugović B. Electrochemical determination of ascorbic acid using electrochemically deposited polyaniline. in Proceedings of the 41st International Conference of Slovak Society of Chemical Engineering. 2014;:654-657.
https://hdl.handle.net/21.15107/rcub_technorep_2589 .

Gvozdenović, Milica, Popović, N., Stevanović, Jasmina, Grgur, Branimir, Trišović, Tomislav, Jugović, Branimir, "Electrochemical determination of ascorbic acid using electrochemically deposited polyaniline" in Proceedings of the 41st International Conference of Slovak Society of Chemical Engineering (2014):654-657,
https://hdl.handle.net/21.15107/rcub_technorep_2589 .

TY  - JOUR
AU  - Marković, Radmila
AU  - Stevanović, Jasmina
AU  - Gvozdenović, Milica
AU  - Jakšić, Jelena M.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2614
AB  - The aim of this paper was to investigate the possibility of using the copper anodes with high nickel content for electrolytic treatment of waste sulfuric acid copper electrolyte. Nickel content in each anode was about 10 wt. %. Lead, antimony, and tin content was within the limits ranged from 0.1 to 1.4 wt. %. Copper mass content in anodes was in the range from 86 to 90 wt. %, and was mathematical deference to 100 wt. %. Electrolytic processing was done in galvanostatic conditions at the current density of 250 A/m2, electrolyte temperature of 63 ± 2 ° C, duration of each test of 72 h. The mass of each anode was about 7 kg. The waste sulfuric acid electrolyte with concentration of 30 g dm3 Cu2+ ions and 225 g/dm3 SO4 2- ions was used as the working solution. Changing the anode mass, changing the content of copper and nickel ions in the working solution and the mass of obtained cathode deposit were the subject of discussion in this paper. The difference in weight of anode at the beginning and end of the process confirmed that the anodes are dissolved during the process. A significant reduction of Cu2+ ions concentration was achieved as well as an increase in concentration of Ni2+ ions in the working solution. Mass of cathode deposit, obtained during electrolytic refining of anode with the smallest impurity content, was greater than the mass of dissolved correspondent anode for about 2%. Mass of cathode deposit, obtained by refining the anode with the content of Pb + Sn + Sb from 1.5 to 3.5 wt. %, was less than the mass of dissolved correspondent anode by about 2 %.
AB  - Cilj ovog rada bio je da se ispita mogućnost korišćenja bakarnih anoda sa visokim sadržajem nikla za elektrolitičku preradu otpadnog sumporno-kiselog elektrolita bakra. Sadržaj nikla u anodama bio je oko 10 mas. %, a sadržaj olova, antimona i kalaja kretao se u granicama od 0.1 do 1.4 mas. %. Maseno učešće bakra u anodama bilo je u opsegu od 86 do 90 mas. % i predstavljalo je razliku do 100 mas. %. Elektrolitička prerada je rađena u uslovima galvanostatskog režima rada, pri gustini struje od 250 A/m2, temperaturi elektrolita od 63±2oC, u trajanju od 72 h. Masa svake anode bila je oko 7 kg. Otpadni sumporno-kiseli elektrolit sa sadržajem Cu2+ jona od 30 g/dm3 i sadržajem SO4 2- jona od 225 g/dm3 korišćen je kao radni rastvor. Promena mase anoda, promena sadržaja jona bakra i nikla u radnom rastvoru i masa dobijenog katodnog taloga bili su predmet diskusije u ovom radu. Razlika u masi anoda na početku i kraju procesa potvrdila je da su se anode tokom procesa rastvarale. Postignuto je značajno smanjenje koncentracije Cu2+ jona i povećanje koncentracije Ni2+ jona u radnom rastvoru. Masa katodnog taloga dobijenog elektrilitičkom rafinacijom anode sa najmanjim sadržajem nečistoća bila je veća od mase rastvorene korespodentne anode za oko 2 % dok su mase katodnih taloga dobijenih rafinacijom anoda sa sadržajem Pb+Sn+Sb od 1.5 - 3.5 mas. % bile manje od masa rastvorenih anoda za oko 2 %.
PB  - Institut za rudarstvo i metalurgiju, Bor
T2  - Mining and Metallurgy Engineering Bor
T1  - Treatment of waste sulfuric acid copper electrolyte
T1  - Tretman otpadnog sumporno-kiselog elektrolita bakra
EP  - 152
IS  - 3
SP  - 141
DO  - 10.5937/mmeb1403141m
ER  - 

@article{
author = "Marković, Radmila and Stevanović, Jasmina and Gvozdenović, Milica and Jakšić, Jelena M.",
year = "2014",
abstract = "The aim of this paper was to investigate the possibility of using the copper anodes with high nickel content for electrolytic treatment of waste sulfuric acid copper electrolyte. Nickel content in each anode was about 10 wt. %. Lead, antimony, and tin content was within the limits ranged from 0.1 to 1.4 wt. %. Copper mass content in anodes was in the range from 86 to 90 wt. %, and was mathematical deference to 100 wt. %. Electrolytic processing was done in galvanostatic conditions at the current density of 250 A/m2, electrolyte temperature of 63 ± 2 ° C, duration of each test of 72 h. The mass of each anode was about 7 kg. The waste sulfuric acid electrolyte with concentration of 30 g dm3 Cu2+ ions and 225 g/dm3 SO4 2- ions was used as the working solution. Changing the anode mass, changing the content of copper and nickel ions in the working solution and the mass of obtained cathode deposit were the subject of discussion in this paper. The difference in weight of anode at the beginning and end of the process confirmed that the anodes are dissolved during the process. A significant reduction of Cu2+ ions concentration was achieved as well as an increase in concentration of Ni2+ ions in the working solution. Mass of cathode deposit, obtained during electrolytic refining of anode with the smallest impurity content, was greater than the mass of dissolved correspondent anode for about 2%. Mass of cathode deposit, obtained by refining the anode with the content of Pb + Sn + Sb from 1.5 to 3.5 wt. %, was less than the mass of dissolved correspondent anode by about 2 %., Cilj ovog rada bio je da se ispita mogućnost korišćenja bakarnih anoda sa visokim sadržajem nikla za elektrolitičku preradu otpadnog sumporno-kiselog elektrolita bakra. Sadržaj nikla u anodama bio je oko 10 mas. %, a sadržaj olova, antimona i kalaja kretao se u granicama od 0.1 do 1.4 mas. %. Maseno učešće bakra u anodama bilo je u opsegu od 86 do 90 mas. % i predstavljalo je razliku do 100 mas. %. Elektrolitička prerada je rađena u uslovima galvanostatskog režima rada, pri gustini struje od 250 A/m2, temperaturi elektrolita od 63±2oC, u trajanju od 72 h. Masa svake anode bila je oko 7 kg. Otpadni sumporno-kiseli elektrolit sa sadržajem Cu2+ jona od 30 g/dm3 i sadržajem SO4 2- jona od 225 g/dm3 korišćen je kao radni rastvor. Promena mase anoda, promena sadržaja jona bakra i nikla u radnom rastvoru i masa dobijenog katodnog taloga bili su predmet diskusije u ovom radu. Razlika u masi anoda na početku i kraju procesa potvrdila je da su se anode tokom procesa rastvarale. Postignuto je značajno smanjenje koncentracije Cu2+ jona i povećanje koncentracije Ni2+ jona u radnom rastvoru. Masa katodnog taloga dobijenog elektrilitičkom rafinacijom anode sa najmanjim sadržajem nečistoća bila je veća od mase rastvorene korespodentne anode za oko 2 % dok su mase katodnih taloga dobijenih rafinacijom anoda sa sadržajem Pb+Sn+Sb od 1.5 - 3.5 mas. % bile manje od masa rastvorenih anoda za oko 2 %.",
publisher = "Institut za rudarstvo i metalurgiju, Bor",
journal = "Mining and Metallurgy Engineering Bor",
title = "Treatment of waste sulfuric acid copper electrolyte, Tretman otpadnog sumporno-kiselog elektrolita bakra",
pages = "152-141",
number = "3",
doi = "10.5937/mmeb1403141m"
}

Marković, R., Stevanović, J., Gvozdenović, M.,& Jakšić, J. M.. (2014). Treatment of waste sulfuric acid copper electrolyte. in Mining and Metallurgy Engineering Bor
Institut za rudarstvo i metalurgiju, Bor.(3), 141-152.
https://doi.org/10.5937/mmeb1403141m

Marković R, Stevanović J, Gvozdenović M, Jakšić JM. Treatment of waste sulfuric acid copper electrolyte. in Mining and Metallurgy Engineering Bor. 2014;(3):141-152.
doi:10.5937/mmeb1403141m .

Marković, Radmila, Stevanović, Jasmina, Gvozdenović, Milica, Jakšić, Jelena M., "Treatment of waste sulfuric acid copper electrolyte" in Mining and Metallurgy Engineering Bor, no. 3 (2014):141-152,
https://doi.org/10.5937/mmeb1403141m . .

TY  - JOUR
AU  - Gvozdenović, Milica
AU  - Jugović, Branimir
AU  - Stevanović, Jasmina
AU  - Grgur, Branimir
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2642
AB  - Electroconducting polymers from the group of synthetic metals are extensively investigated due to numerous properties perspective in practical application. These materials may be synthesized by both chemical and electrochemical procedures. Chemical synthesis is suitable when bulk quantities of the polymer are necessary and up to date it presents dominant commercial method of producing electroconducting polymers. Nevertheless, the electrochemical synthesis has its advantages; it avoids usage of oxidants since conducting polymeric material is obtained at anode upon application of positive potential, leading to increased purity. On the other hand, since the polymer is deposited onto electrode, further electrochemical characterization is facilitated. Owing to actuality of the research in the field, this text aims to describe important aspects of electrochemical synthesis of electroconducting polymers, with special emphasis to polyaniline and polypyrrole.
AB  - Tradicionalno shvatanje o polimerima kao odličnim izolatorima izmenjeno je sedamdesetih godina prošlog veka kada su naučnici uspeli da sintetizuju poiliacetilen čija je provodljivost bila bliska metalnoj. Ova činjenica ukazala je na novo svojstvo polimernih materijala i lansirala potpuno novo multidisciplinarno naučno polje, popularno nazvano, sintetički metali. Iako je danas pojmom elektroprovodnih polimera obuhvaćena velika grupa jedinjenja koja su klasifikovana prema prirodi prenosioca naelektrisanja, naziv elektroprovodni polimeri se najčešće koristi u literaturi upravo za polimerne materijala iz grupe sintetičkih metala koji poseduju elektronsku provodljivost kao posledicu specifičnosti molekulske strukture. Pored zahteva molekulske structure, koja podrazumeva konjugovani sistem dvostrukih veza, za provodljivost elektroprovodnih polimera neophodno je dopovanje. Termin dopovanje, iako preuzet iz terminologije klasičnih neorganskih poluprovodnika, podrazumeva u mnogome drugačiji proces. Dopovanje elektroprovodnih polimera podrazumeva oksidaciju tokom koje se, u cilju održavanja elektroneutralnosti polimernog lanca, uvodi stehiometrijska količina jona (anjona). Terminom dopovanje obuhvaćena je i protonacija polimernog lanca kiselinom, u slučaju polianilina, a nedavno je potvrđena i u slučaju polipirola. Kako je, na ovaj način, uvedena velika količina jona izmenjenja je polazna struktura elektroprovodnog polimera, tako da svojstva nastalog materijala zavise u velikoj meri od svojstava dopanta. Iako su na početku razvoja ove oblasti, elektroprovodni polimeri bili sintetizovani hemijskim postupcima, sticanjem uvida u mehanizam hemijske sinteze koja podrazumeva oksidativnu radikalnu polimerizaciju, postalo je jasno da se ovi materijali mogu dobiti i elektrohemijskim postupcima. Elektrohemijska sinteza ima prednosti, pošto se polimer dobija oksidacijom na elektrodama (anodama), čime je izbegnuta upotreba oksidacinog sredstva i omogućena veća čistoća proizvoda. Sa druge strane, elektroprovodni polimer je u većini slučajeva dobijen u obliku prevlake na elektrodi, pa je njegova dalja karakterizacija elektrohemijskim tenikama olakšana. Interesovanje za oblst sinteze elektroprovodnih polimera ne jenjava, pa je ovaj tekst posvećen osnovnim principima elektrohemijskih postupaka sinteze sa posebnim osvrtom na najpopularnije elektroprovodne polimere, polianilin i polipirol.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Electrochemical synthesis of electroconducting polymers
T1  - Elektrohemijska sinteza elektroprovodnih polimera
EP  - 684
IS  - 6
SP  - 673
VL  - 68
DO  - 10.2298/HEMIND131122008G
ER  - 

@article{
author = "Gvozdenović, Milica and Jugović, Branimir and Stevanović, Jasmina and Grgur, Branimir",
year = "2014",
abstract = "Electroconducting polymers from the group of synthetic metals are extensively investigated due to numerous properties perspective in practical application. These materials may be synthesized by both chemical and electrochemical procedures. Chemical synthesis is suitable when bulk quantities of the polymer are necessary and up to date it presents dominant commercial method of producing electroconducting polymers. Nevertheless, the electrochemical synthesis has its advantages; it avoids usage of oxidants since conducting polymeric material is obtained at anode upon application of positive potential, leading to increased purity. On the other hand, since the polymer is deposited onto electrode, further electrochemical characterization is facilitated. Owing to actuality of the research in the field, this text aims to describe important aspects of electrochemical synthesis of electroconducting polymers, with special emphasis to polyaniline and polypyrrole., Tradicionalno shvatanje o polimerima kao odličnim izolatorima izmenjeno je sedamdesetih godina prošlog veka kada su naučnici uspeli da sintetizuju poiliacetilen čija je provodljivost bila bliska metalnoj. Ova činjenica ukazala je na novo svojstvo polimernih materijala i lansirala potpuno novo multidisciplinarno naučno polje, popularno nazvano, sintetički metali. Iako je danas pojmom elektroprovodnih polimera obuhvaćena velika grupa jedinjenja koja su klasifikovana prema prirodi prenosioca naelektrisanja, naziv elektroprovodni polimeri se najčešće koristi u literaturi upravo za polimerne materijala iz grupe sintetičkih metala koji poseduju elektronsku provodljivost kao posledicu specifičnosti molekulske strukture. Pored zahteva molekulske structure, koja podrazumeva konjugovani sistem dvostrukih veza, za provodljivost elektroprovodnih polimera neophodno je dopovanje. Termin dopovanje, iako preuzet iz terminologije klasičnih neorganskih poluprovodnika, podrazumeva u mnogome drugačiji proces. Dopovanje elektroprovodnih polimera podrazumeva oksidaciju tokom koje se, u cilju održavanja elektroneutralnosti polimernog lanca, uvodi stehiometrijska količina jona (anjona). Terminom dopovanje obuhvaćena je i protonacija polimernog lanca kiselinom, u slučaju polianilina, a nedavno je potvrđena i u slučaju polipirola. Kako je, na ovaj način, uvedena velika količina jona izmenjenja je polazna struktura elektroprovodnog polimera, tako da svojstva nastalog materijala zavise u velikoj meri od svojstava dopanta. Iako su na početku razvoja ove oblasti, elektroprovodni polimeri bili sintetizovani hemijskim postupcima, sticanjem uvida u mehanizam hemijske sinteze koja podrazumeva oksidativnu radikalnu polimerizaciju, postalo je jasno da se ovi materijali mogu dobiti i elektrohemijskim postupcima. Elektrohemijska sinteza ima prednosti, pošto se polimer dobija oksidacijom na elektrodama (anodama), čime je izbegnuta upotreba oksidacinog sredstva i omogućena veća čistoća proizvoda. Sa druge strane, elektroprovodni polimer je u većini slučajeva dobijen u obliku prevlake na elektrodi, pa je njegova dalja karakterizacija elektrohemijskim tenikama olakšana. Interesovanje za oblst sinteze elektroprovodnih polimera ne jenjava, pa je ovaj tekst posvećen osnovnim principima elektrohemijskih postupaka sinteze sa posebnim osvrtom na najpopularnije elektroprovodne polimere, polianilin i polipirol.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Electrochemical synthesis of electroconducting polymers, Elektrohemijska sinteza elektroprovodnih polimera",
pages = "684-673",
number = "6",
volume = "68",
doi = "10.2298/HEMIND131122008G"
}

Gvozdenović, M., Jugović, B., Stevanović, J.,& Grgur, B.. (2014). Electrochemical synthesis of electroconducting polymers. in Hemijska industrija
Association of Chemical Engineers of Serbia., 68(6), 673-684.
https://doi.org/10.2298/HEMIND131122008G

Gvozdenović M, Jugović B, Stevanović J, Grgur B. Electrochemical synthesis of electroconducting polymers. in Hemijska industrija. 2014;68(6):673-684.
doi:10.2298/HEMIND131122008G .

Gvozdenović, Milica, Jugović, Branimir, Stevanović, Jasmina, Grgur, Branimir, "Electrochemical synthesis of electroconducting polymers" in Hemijska industrija, 68, no. 6 (2014):673-684,
https://doi.org/10.2298/HEMIND131122008G . .

TY  - JOUR
AU  - Marković, Radmila
AU  - Stevanović, Jasmina
AU  - Gvozdenović, Milica
AU  - Jugović, Branimir
AU  - Grujić, Aleksandar
AU  - Nedeljković, Dragutin
AU  - Stajić-Trošić, Jasna
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2281
AB  - The use of copper anodes with non standard content of impurities for the treatment of waste, sulphur acid solutions that came as a result of the industrial process of electrolytic copper refining was investigated. Those solutions contain the high content of copper, nickel and arsine, and because of that, the copper anodes with high content of Ni, Pb, Sn and Sb were prepared. Examination the effect of high impurities content as well as the influence of the solution temperature on the anodes behaviour during the electrolytic process under the conditions that are the same as the industrial was the aim of this work. Obtained results clearly indicate that tested anodes could be used for the refined during the electrorefining process. Dissolution of copper anodes was not stoppage after the first appearance of the passivation region for A1 and A2 anodes while appearance of passivation for A3 anode, for test duration of 72 h, was not registered. The start time of the first passivation appearance is shorter in the case of the anode with high content of all impurities, anode A1. The first passivation occurrence was detected on higher temperature after about 29 h from the test starts. The change of chemical composition of electrolyte was monitored during electrolysis. Concentration of nickel in the working electrolyte at the end of process is increased and it corresponds to the Ni content in anodes. The copper and arsenic concentrations are decreased during the process. Arsenic passes into the anode slime, while the copper is deposited on the cathode and also passed in the slime. After the process is finished, obtained solution could be used for the nickel recover using the electrochemically or chemically methods.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes
EP  - 7370
IS  - 5
SP  - 7357
VL  - 8
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2281
ER  - 

@article{
author = "Marković, Radmila and Stevanović, Jasmina and Gvozdenović, Milica and Jugović, Branimir and Grujić, Aleksandar and Nedeljković, Dragutin and Stajić-Trošić, Jasna",
year = "2013",
abstract = "The use of copper anodes with non standard content of impurities for the treatment of waste, sulphur acid solutions that came as a result of the industrial process of electrolytic copper refining was investigated. Those solutions contain the high content of copper, nickel and arsine, and because of that, the copper anodes with high content of Ni, Pb, Sn and Sb were prepared. Examination the effect of high impurities content as well as the influence of the solution temperature on the anodes behaviour during the electrolytic process under the conditions that are the same as the industrial was the aim of this work. Obtained results clearly indicate that tested anodes could be used for the refined during the electrorefining process. Dissolution of copper anodes was not stoppage after the first appearance of the passivation region for A1 and A2 anodes while appearance of passivation for A3 anode, for test duration of 72 h, was not registered. The start time of the first passivation appearance is shorter in the case of the anode with high content of all impurities, anode A1. The first passivation occurrence was detected on higher temperature after about 29 h from the test starts. The change of chemical composition of electrolyte was monitored during electrolysis. Concentration of nickel in the working electrolyte at the end of process is increased and it corresponds to the Ni content in anodes. The copper and arsenic concentrations are decreased during the process. Arsenic passes into the anode slime, while the copper is deposited on the cathode and also passed in the slime. After the process is finished, obtained solution could be used for the nickel recover using the electrochemically or chemically methods.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes",
pages = "7370-7357",
number = "5",
volume = "8",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2281"
}

Marković, R., Stevanović, J., Gvozdenović, M., Jugović, B., Grujić, A., Nedeljković, D.,& Stajić-Trošić, J.. (2013). Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 8(5), 7357-7370.
https://hdl.handle.net/21.15107/rcub_technorep_2281

Marković R, Stevanović J, Gvozdenović M, Jugović B, Grujić A, Nedeljković D, Stajić-Trošić J. Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes. in International Journal of Electrochemical Science. 2013;8(5):7357-7370.
https://hdl.handle.net/21.15107/rcub_technorep_2281 .

Marković, Radmila, Stevanović, Jasmina, Gvozdenović, Milica, Jugović, Branimir, Grujić, Aleksandar, Nedeljković, Dragutin, Stajić-Trošić, Jasna, "Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes" in International Journal of Electrochemical Science, 8, no. 5 (2013):7357-7370,
https://hdl.handle.net/21.15107/rcub_technorep_2281 .

TY  - JOUR
AU  - Grujić, Aleksandar
AU  - Stajić-Trošić, Jasna
AU  - Stijepović, Mirko
AU  - Nedeljković, Dragutin
AU  - Stajčić, Aleksandar
AU  - Stevanović, Jasmina
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2278
AB  - Various types and contents of magnetic powder and polymer matrix induce different mechanical, magnetic, electrical and optical properties of final composite material. The strong influence of relatively small amounts of filler particles on the dynamic mechanical properties of polymers has significantly contributed to increased use of polymer materials in many commercial applications. The higher content of magnetic filler has direct influence on magnetic properties of composites, but also may change the rheology of polymer melt during process and, subsequently, impact the mechanical strength of bonded magnets. For better insight into viscoelastic behaviour of composites, beside experiments, a theory that explicitly takes the shape factor, particle distribution, particle-particle interactions as well as particle-polymer matrix interactions into account is required. The mathematical prediction of storage modulus behaviour is examined. The several proposed analytical models are tested versus experimental results. Some of applied models agree very well with experimental data, whilst others deviate significantly.
AB  - Različite vrste primenjenih magnetnih prahova i polimerne matrice, kao i njihovi udeli, utiču na mehanička, magnetna, električna i optička svojstva finalnog kompozitnog materijala. Veliki uticaj relativno malih udela čestica punioca na dinamičko mehanička svojstva polimera značajno doprinosi većoj komercijalnoj upotrebi kompozitnih materijala. Veliki udeli magnetnog praha u mnogome utiču na magnetna svojstva kompozita, ali takođe mogu dovesti do reoloških promena u polimeru tokom procesa topljenja, što ima direktan uticaj na mehanička svojstva polimerom vezanih (bonded) magneta. Radi boljeg uvida u visokoelastična svojstva kompozita, osim eksperimenata, neophodno je uzeti u obzir i teorijska razmatranja koja eksplicitno objašnjavaju uticaj faktora oblika, raspodelu čestica, interakcije između čestica, kao i interakcije između čestica i polimera. U tom smislu vršeno je i matematičko predviđanje ponašanja modula uskladištene energije (E') kompozita. Nekoliko predloženih analitičkih modela su testirani i upoređeni sa eksperimentalnim rezultatima. Neki od primenjenih modela se veoma dobro slažu sa dobijenim eksperimentalnim rezultatima, dok neki značajno odstupaju.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Polymer bonded magnetic composites based on Nd-Fe-B
T1  - Polimerni magnetni kompoziti na bazi Nd-Fe-B
EP  - 365
IS  - 4
SP  - 361
VL  - 54
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2278
ER  - 

@article{
author = "Grujić, Aleksandar and Stajić-Trošić, Jasna and Stijepović, Mirko and Nedeljković, Dragutin and Stajčić, Aleksandar and Stevanović, Jasmina",
year = "2013",
abstract = "Various types and contents of magnetic powder and polymer matrix induce different mechanical, magnetic, electrical and optical properties of final composite material. The strong influence of relatively small amounts of filler particles on the dynamic mechanical properties of polymers has significantly contributed to increased use of polymer materials in many commercial applications. The higher content of magnetic filler has direct influence on magnetic properties of composites, but also may change the rheology of polymer melt during process and, subsequently, impact the mechanical strength of bonded magnets. For better insight into viscoelastic behaviour of composites, beside experiments, a theory that explicitly takes the shape factor, particle distribution, particle-particle interactions as well as particle-polymer matrix interactions into account is required. The mathematical prediction of storage modulus behaviour is examined. The several proposed analytical models are tested versus experimental results. Some of applied models agree very well with experimental data, whilst others deviate significantly., Različite vrste primenjenih magnetnih prahova i polimerne matrice, kao i njihovi udeli, utiču na mehanička, magnetna, električna i optička svojstva finalnog kompozitnog materijala. Veliki uticaj relativno malih udela čestica punioca na dinamičko mehanička svojstva polimera značajno doprinosi većoj komercijalnoj upotrebi kompozitnih materijala. Veliki udeli magnetnog praha u mnogome utiču na magnetna svojstva kompozita, ali takođe mogu dovesti do reoloških promena u polimeru tokom procesa topljenja, što ima direktan uticaj na mehanička svojstva polimerom vezanih (bonded) magneta. Radi boljeg uvida u visokoelastična svojstva kompozita, osim eksperimenata, neophodno je uzeti u obzir i teorijska razmatranja koja eksplicitno objašnjavaju uticaj faktora oblika, raspodelu čestica, interakcije između čestica, kao i interakcije između čestica i polimera. U tom smislu vršeno je i matematičko predviđanje ponašanja modula uskladištene energije (E') kompozita. Nekoliko predloženih analitičkih modela su testirani i upoređeni sa eksperimentalnim rezultatima. Neki od primenjenih modela se veoma dobro slažu sa dobijenim eksperimentalnim rezultatima, dok neki značajno odstupaju.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Polymer bonded magnetic composites based on Nd-Fe-B, Polimerni magnetni kompoziti na bazi Nd-Fe-B",
pages = "365-361",
number = "4",
volume = "54",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2278"
}

Grujić, A., Stajić-Trošić, J., Stijepović, M., Nedeljković, D., Stajčić, A.,& Stevanović, J.. (2013). Polymer bonded magnetic composites based on Nd-Fe-B. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 54(4), 361-365.
https://hdl.handle.net/21.15107/rcub_technorep_2278

Grujić A, Stajić-Trošić J, Stijepović M, Nedeljković D, Stajčić A, Stevanović J. Polymer bonded magnetic composites based on Nd-Fe-B. in Zaštita materijala. 2013;54(4):361-365.
https://hdl.handle.net/21.15107/rcub_technorep_2278 .

Grujić, Aleksandar, Stajić-Trošić, Jasna, Stijepović, Mirko, Nedeljković, Dragutin, Stajčić, Aleksandar, Stevanović, Jasmina, "Polymer bonded magnetic composites based on Nd-Fe-B" in Zaštita materijala, 54, no. 4 (2013):361-365,
https://hdl.handle.net/21.15107/rcub_technorep_2278 .

TY  - CONF
AU  - Gvozdenović, Milica
AU  - Jugović, Branimir
AU  - Jambrec, Daliborka
AU  - Grgur, Branimir
AU  - Trišović, Tomislav
AU  - Stevanović, Jasmina
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2018
AB  - Polyaniline (PANI) was electrochemically synthesized on graphite electrode galvanostaticaly from aqueous solution of 0.25 mol dm-3 aniline and 0.5 mol dm-3 p-toluenesulfonic acid. Charge capacity available for the exchange and the total theoretical weight of polyaniline polymerized on graphite electrode was determined. Characterization polianiline electrode was performed by cyclic voltametry in 0.5 mol dm-3 HCl. Based on the PANI electrodes behavior during the cyclization, was tested the possibility of practical application of polyaniline doped p-toluenesulfonic acid as the anode material of secondary electrochemical power sources.
PB  - Tatranské Matliare : Slovak Society of Chemical Engineering
C3  - Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering
T1  - The influence of current density on charge/discharge characteristics of polyaniline electrode
EP  - 1471
SP  - 1467
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2018
ER  - 

@conference{
author = "Gvozdenović, Milica and Jugović, Branimir and Jambrec, Daliborka and Grgur, Branimir and Trišović, Tomislav and Stevanović, Jasmina",
year = "2012",
abstract = "Polyaniline (PANI) was electrochemically synthesized on graphite electrode galvanostaticaly from aqueous solution of 0.25 mol dm-3 aniline and 0.5 mol dm-3 p-toluenesulfonic acid. Charge capacity available for the exchange and the total theoretical weight of polyaniline polymerized on graphite electrode was determined. Characterization polianiline electrode was performed by cyclic voltametry in 0.5 mol dm-3 HCl. Based on the PANI electrodes behavior during the cyclization, was tested the possibility of practical application of polyaniline doped p-toluenesulfonic acid as the anode material of secondary electrochemical power sources.",
publisher = "Tatranské Matliare : Slovak Society of Chemical Engineering",
journal = "Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering",
title = "The influence of current density on charge/discharge characteristics of polyaniline electrode",
pages = "1471-1467",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2018"
}

Gvozdenović, M., Jugović, B., Jambrec, D., Grgur, B., Trišović, T.,& Stevanović, J.. (2012). The influence of current density on charge/discharge characteristics of polyaniline electrode. in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering
Tatranské Matliare : Slovak Society of Chemical Engineering., 1467-1471.
https://hdl.handle.net/21.15107/rcub_technorep_2018

Gvozdenović M, Jugović B, Jambrec D, Grgur B, Trišović T, Stevanović J. The influence of current density on charge/discharge characteristics of polyaniline electrode. in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering. 2012;:1467-1471.
https://hdl.handle.net/21.15107/rcub_technorep_2018 .

Gvozdenović, Milica, Jugović, Branimir, Jambrec, Daliborka, Grgur, Branimir, Trišović, Tomislav, Stevanović, Jasmina, "The influence of current density on charge/discharge characteristics of polyaniline electrode" in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering (2012):1467-1471,
https://hdl.handle.net/21.15107/rcub_technorep_2018 .

TY  - CONF
AU  - Marković, Radmila
AU  - Stevanović, Jasmina
AU  - Jugović, Branimir
AU  - Gvozdenović, Milica
AU  - Avramović, Ljiljana
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2003
AB  - In this paper are presented the results of the first appearance of full pasivation during the treatment of the waste sulphuric-acid solution generated in the conventional copper electrorefining process. The copper anodes with non-standard content of nickel, lead, tin and antimony were used as material for electrochemical refinement. Nickel content in anodes was approximately 5 or 7.5 wt. %, and the summary content of lead, tin and antimony was up to 3 wt. %. Copper content was a difference of up to 100 wt. %. Chemical analysis of the waste solution from copper refining process which was used as electrolyte has shown that the Ni and As ions are present in concentrations of Ni - 20.5 g dm-3 and As – 4 g dm-3. The experiments were carried out in galvanostatic mode at current density of 250 A m-2, at electrolyte temperatures of T1 = 63 ± 2 0C and T2 = 73 ± 2 0C for a process duration of 72 h. The data obtained on the basis of the measured values of cell voltage for each anode where the nickel content was approximately 5 wt. % (anodes marked as A1-A4) and nickel content of approximately 7.5 wt.% (anodes marked as A5-A8) shown that using the anodes with lower nickel content (A2 and A3) leads to the appearance of full pasivation phenomenon at both electrolyte temperature. The apperance of full passivation for anodes with higher nickel content (A5-A7) is registered only at lower electrolyte temperature.
PB  - Tatranské Matliare : Slovak Society of Chemical Engineering
C3  - Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering
T1  - The effect of Ni content on passivation of copper anodes with non-standard chemical composition
EP  - 1466
SP  - 1462
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2003
ER  - 

@conference{
author = "Marković, Radmila and Stevanović, Jasmina and Jugović, Branimir and Gvozdenović, Milica and Avramović, Ljiljana",
year = "2012",
abstract = "In this paper are presented the results of the first appearance of full pasivation during the treatment of the waste sulphuric-acid solution generated in the conventional copper electrorefining process. The copper anodes with non-standard content of nickel, lead, tin and antimony were used as material for electrochemical refinement. Nickel content in anodes was approximately 5 or 7.5 wt. %, and the summary content of lead, tin and antimony was up to 3 wt. %. Copper content was a difference of up to 100 wt. %. Chemical analysis of the waste solution from copper refining process which was used as electrolyte has shown that the Ni and As ions are present in concentrations of Ni - 20.5 g dm-3 and As – 4 g dm-3. The experiments were carried out in galvanostatic mode at current density of 250 A m-2, at electrolyte temperatures of T1 = 63 ± 2 0C and T2 = 73 ± 2 0C for a process duration of 72 h. The data obtained on the basis of the measured values of cell voltage for each anode where the nickel content was approximately 5 wt. % (anodes marked as A1-A4) and nickel content of approximately 7.5 wt.% (anodes marked as A5-A8) shown that using the anodes with lower nickel content (A2 and A3) leads to the appearance of full pasivation phenomenon at both electrolyte temperature. The apperance of full passivation for anodes with higher nickel content (A5-A7) is registered only at lower electrolyte temperature.",
publisher = "Tatranské Matliare : Slovak Society of Chemical Engineering",
journal = "Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering",
title = "The effect of Ni content on passivation of copper anodes with non-standard chemical composition",
pages = "1466-1462",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2003"
}

Marković, R., Stevanović, J., Jugović, B., Gvozdenović, M.,& Avramović, L.. (2012). The effect of Ni content on passivation of copper anodes with non-standard chemical composition. in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering
Tatranské Matliare : Slovak Society of Chemical Engineering., 1462-1466.
https://hdl.handle.net/21.15107/rcub_technorep_2003

Marković R, Stevanović J, Jugović B, Gvozdenović M, Avramović L. The effect of Ni content on passivation of copper anodes with non-standard chemical composition. in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering. 2012;:1462-1466.
https://hdl.handle.net/21.15107/rcub_technorep_2003 .

Marković, Radmila, Stevanović, Jasmina, Jugović, Branimir, Gvozdenović, Milica, Avramović, Ljiljana, "The effect of Ni content on passivation of copper anodes with non-standard chemical composition" in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering (2012):1462-1466,
https://hdl.handle.net/21.15107/rcub_technorep_2003 .

TY  - CONF
AU  - Marković, Radmila
AU  - Stevanović, Jasmina
AU  - Gvozdenović, Milica
AU  - Jugović, Branimir
AU  - Jonović, Radojka
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1997
AB  - This paper is adresses on treatment of sulphuric acid waste solutions obtained during the conventional copper metallurgical activities. Mother liquor is a part of this solutions and it is generated during the regeneration process of copper bleed solution. Copper, nickel and sulphuric acid are the main components and the other registered impurities are: As, Se, Fe, Sb, Zn, Bi, Pb, Cl ions. Aim to copper removing from the mother liquor, the decopperization process on the industrial scale equipment, is investigated. Investigation was done using the rectangular insoluble lead anodes alloyed with 6 wt.% of antimony at current value of 13 000 A, identical to the current in a commercial copper refinery plant. A few parameters as so as: current, cell voltage, electrolyte temperature, electrolyte flow rate, level of electrolyte, were monitored during the test. Comparing the values of copper content in the solution before and after the decopperization of copper, it was found that it decreased of about 80 wt. % of the initial value. Chemical characterization of the sludge obtained on cathode has shown that it is a material with copper content of about 90 wt. %.
PB  - Tatranské Matliare : Slovak Society of Chemical Engineering
C3  - Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering
T1  - Decopperization process of waste solutions from conventional copper electrolysis
EP  - 297
SP  - 292
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1997
ER  - 

@conference{
author = "Marković, Radmila and Stevanović, Jasmina and Gvozdenović, Milica and Jugović, Branimir and Jonović, Radojka",
year = "2012",
abstract = "This paper is adresses on treatment of sulphuric acid waste solutions obtained during the conventional copper metallurgical activities. Mother liquor is a part of this solutions and it is generated during the regeneration process of copper bleed solution. Copper, nickel and sulphuric acid are the main components and the other registered impurities are: As, Se, Fe, Sb, Zn, Bi, Pb, Cl ions. Aim to copper removing from the mother liquor, the decopperization process on the industrial scale equipment, is investigated. Investigation was done using the rectangular insoluble lead anodes alloyed with 6 wt.% of antimony at current value of 13 000 A, identical to the current in a commercial copper refinery plant. A few parameters as so as: current, cell voltage, electrolyte temperature, electrolyte flow rate, level of electrolyte, were monitored during the test. Comparing the values of copper content in the solution before and after the decopperization of copper, it was found that it decreased of about 80 wt. % of the initial value. Chemical characterization of the sludge obtained on cathode has shown that it is a material with copper content of about 90 wt. %.",
publisher = "Tatranské Matliare : Slovak Society of Chemical Engineering",
journal = "Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering",
title = "Decopperization process of waste solutions from conventional copper electrolysis",
pages = "297-292",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1997"
}

Marković, R., Stevanović, J., Gvozdenović, M., Jugović, B.,& Jonović, R.. (2012). Decopperization process of waste solutions from conventional copper electrolysis. in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering
Tatranské Matliare : Slovak Society of Chemical Engineering., 292-297.
https://hdl.handle.net/21.15107/rcub_technorep_1997

Marković R, Stevanović J, Gvozdenović M, Jugović B, Jonović R. Decopperization process of waste solutions from conventional copper electrolysis. in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering. 2012;:292-297.
https://hdl.handle.net/21.15107/rcub_technorep_1997 .

Marković, Radmila, Stevanović, Jasmina, Gvozdenović, Milica, Jugović, Branimir, Jonović, Radojka, "Decopperization process of waste solutions from conventional copper electrolysis" in Proceedings of the 39th International Conference of Slovak Society of Chemical Engineering (2012):292-297,
https://hdl.handle.net/21.15107/rcub_technorep_1997 .

TY  - JOUR
AU  - Jambrec, Daliborka
AU  - Gvozdenović, Milica
AU  - Antov, Mirjana
AU  - Grgur, Branimir
AU  - Jokić, Bojan
AU  - Stevanović, Jasmina
AU  - Jugović, Branimir
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2136
AB  - Electrochemical deposition of polyaniline (PANI) on graphite electrode was performed galvanostaticaly at constant current density in the range of 1.0 - 5.0 mA cm(-2) from aqueous acidic electrolyte containing aniline monomer. Based on ratio of doping/dedoping charge capacities, it was estimated that current density of 2.0 mA cm(-2) was optimal. The structure of the electrochemically synthesized PANI was fibrous, uniform and three dimensional with highly developed surface. Immobilization of glucose oxidise (GOx) was achieved by cross linking via glutaraldehyde and the efficiency of the immobilization was determined spectrophotometrically. Chronoamperometric curves were recorded at different glucose concentrations and used to estimate the apparent Michaelis constant, which was shown to be 0.27 mM. The storage stability of the PANI enzyme electrode was also estimated.
PB  - Inst Materials Physics, Bucharest
T2  - Digest Journal of Nanomaterials and Biostructures
T1  - Electrochemically deposited nano fibrous polyanilne for amperometric determination of glucose
EP  - 794
IS  - 2
SP  - 785
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2136
ER  - 

@article{
author = "Jambrec, Daliborka and Gvozdenović, Milica and Antov, Mirjana and Grgur, Branimir and Jokić, Bojan and Stevanović, Jasmina and Jugović, Branimir",
year = "2012",
abstract = "Electrochemical deposition of polyaniline (PANI) on graphite electrode was performed galvanostaticaly at constant current density in the range of 1.0 - 5.0 mA cm(-2) from aqueous acidic electrolyte containing aniline monomer. Based on ratio of doping/dedoping charge capacities, it was estimated that current density of 2.0 mA cm(-2) was optimal. The structure of the electrochemically synthesized PANI was fibrous, uniform and three dimensional with highly developed surface. Immobilization of glucose oxidise (GOx) was achieved by cross linking via glutaraldehyde and the efficiency of the immobilization was determined spectrophotometrically. Chronoamperometric curves were recorded at different glucose concentrations and used to estimate the apparent Michaelis constant, which was shown to be 0.27 mM. The storage stability of the PANI enzyme electrode was also estimated.",
publisher = "Inst Materials Physics, Bucharest",
journal = "Digest Journal of Nanomaterials and Biostructures",
title = "Electrochemically deposited nano fibrous polyanilne for amperometric determination of glucose",
pages = "794-785",
number = "2",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2136"
}

Jambrec, D., Gvozdenović, M., Antov, M., Grgur, B., Jokić, B., Stevanović, J.,& Jugović, B.. (2012). Electrochemically deposited nano fibrous polyanilne for amperometric determination of glucose. in Digest Journal of Nanomaterials and Biostructures
Inst Materials Physics, Bucharest., 7(2), 785-794.
https://hdl.handle.net/21.15107/rcub_technorep_2136

Jambrec D, Gvozdenović M, Antov M, Grgur B, Jokić B, Stevanović J, Jugović B. Electrochemically deposited nano fibrous polyanilne for amperometric determination of glucose. in Digest Journal of Nanomaterials and Biostructures. 2012;7(2):785-794.
https://hdl.handle.net/21.15107/rcub_technorep_2136 .

Jambrec, Daliborka, Gvozdenović, Milica, Antov, Mirjana, Grgur, Branimir, Jokić, Bojan, Stevanović, Jasmina, Jugović, Branimir, "Electrochemically deposited nano fibrous polyanilne for amperometric determination of glucose" in Digest Journal of Nanomaterials and Biostructures, 7, no. 2 (2012):785-794,
https://hdl.handle.net/21.15107/rcub_technorep_2136 .

TY  - JOUR
AU  - Marković, Radmila
AU  - Stevanović, Jasmina
AU  - Avramović, Ljiljana
AU  - Nedeljković, Dragutin
AU  - Jugović, Branimir
AU  - Stajić-Trošić, Jasna
AU  - Gvozdenović, Milica
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2126
AB  - The aim of this study is synthesis of copper-sulfate pentahydrate from the waste sulfuric acid solution-mother liquor generated during the regeneration process of copper bleed solution. Copper is removed from the mother liquor solution in the process of the electrolytic treatment using the insoluble lead anodes alloyed with 6 mass pct of antimony on the industrial-scale equipment. As the result of the decopperization process, copper is removed in the form of the cathode sludge and is precipitated at the bottom of the electrolytic cell. By this procedure, the content of copper could be reduced to the 20 mass pct of the initial value. Chemical characterization of the sludge has shown that it contains about 90 mass pct of copper. During the decopperization process, the very strong poison, arsine, can be formed, and the process is in that case terminated. The copper leaching degree of 82 mass pct is obtained using H2SO4 aqueous solution with the oxygen addition during the cathode sludge chemical treatment at 80 A degrees C +/- A 5 A degrees C. Obtained copper salt satisfies the requirements of the Serbian Standard for Pesticide, SRPS H.P1. 058. Therefore, the treatment of waste sulfuric acid solutions is of great economic and environmental interest. DOI: 10.1007/s11663-012-9721-8
PB  - Springer, New York
T2  - Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science
T1  - Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment
EP  - 1392
IS  - 6
SP  - 1388
VL  - 43
DO  - 10.1007/s11663-012-9721-8
ER  - 

@article{
author = "Marković, Radmila and Stevanović, Jasmina and Avramović, Ljiljana and Nedeljković, Dragutin and Jugović, Branimir and Stajić-Trošić, Jasna and Gvozdenović, Milica",
year = "2012",
abstract = "The aim of this study is synthesis of copper-sulfate pentahydrate from the waste sulfuric acid solution-mother liquor generated during the regeneration process of copper bleed solution. Copper is removed from the mother liquor solution in the process of the electrolytic treatment using the insoluble lead anodes alloyed with 6 mass pct of antimony on the industrial-scale equipment. As the result of the decopperization process, copper is removed in the form of the cathode sludge and is precipitated at the bottom of the electrolytic cell. By this procedure, the content of copper could be reduced to the 20 mass pct of the initial value. Chemical characterization of the sludge has shown that it contains about 90 mass pct of copper. During the decopperization process, the very strong poison, arsine, can be formed, and the process is in that case terminated. The copper leaching degree of 82 mass pct is obtained using H2SO4 aqueous solution with the oxygen addition during the cathode sludge chemical treatment at 80 A degrees C +/- A 5 A degrees C. Obtained copper salt satisfies the requirements of the Serbian Standard for Pesticide, SRPS H.P1. 058. Therefore, the treatment of waste sulfuric acid solutions is of great economic and environmental interest. DOI: 10.1007/s11663-012-9721-8",
publisher = "Springer, New York",
journal = "Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science",
title = "Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment",
pages = "1392-1388",
number = "6",
volume = "43",
doi = "10.1007/s11663-012-9721-8"
}

Marković, R., Stevanović, J., Avramović, L., Nedeljković, D., Jugović, B., Stajić-Trošić, J.,& Gvozdenović, M.. (2012). Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment. in Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science
Springer, New York., 43(6), 1388-1392.
https://doi.org/10.1007/s11663-012-9721-8

Marković R, Stevanović J, Avramović L, Nedeljković D, Jugović B, Stajić-Trošić J, Gvozdenović M. Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment. in Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science. 2012;43(6):1388-1392.
doi:10.1007/s11663-012-9721-8 .

Marković, Radmila, Stevanović, Jasmina, Avramović, Ljiljana, Nedeljković, Dragutin, Jugović, Branimir, Stajić-Trošić, Jasna, Gvozdenović, Milica, "Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment" in Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science, 43, no. 6 (2012):1388-1392,
https://doi.org/10.1007/s11663-012-9721-8 . .

TY  - JOUR
AU  - Gvozdenović, Milica
AU  - Jugović, Branimir
AU  - Jambrec, Daliborka
AU  - Stevanović, Jasmina
AU  - Grgur, Branimir
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2090
AB  - Polyaniline is probably the most investigated electroconducting polymer. This popularity is a result of its important features: existence of various oxidation states, electrical and optical activity, low cost monomer, red/ox reversibility, environmental stability, ease of both chemical and electrochemical synthesis etc. These unique features are partly inherited from its polymeric origin and partly aroused from its conductivity and could be considered for practical application in: electrochemical systems for energy storage and conversion, electronic devices, electromagnetic and microwave shielding materials, sensors, biosensors and corrosion protection as well. The motivation of application of polyaniline in corrosion protection of metals and alloys is replacement of environmentally hazardous materials, e.g. chromates in coating systems. Up to day, lot of studies on various metals both on iron, steels and non-ferrous metals and alloys were performed. The studies involve investigation on individual polyaniline coatings and polyaniline in coating systems. Owing to variation in experimental procedure (substrate, substrate preparation, coating type, corrosion environment, test method etc..) it is unlikely to propose unique mechanism for corrosion protection of metals in the presence of polyaniline. However, most of the literature is interpreted in terms of general mechanisms of corrosion protection, barrier and anodic protection.
AB  - Polianilin je najproučavaniji elektroprovodni polimer. Ova popularnost polianilina je posledica jedinstvenih svojstava, delom nasleđenih od polimerne prirode, a delom ostvarenih provodljivošću. Najvažnija svojstva polianilina: postojanje više oksidacionih stanja, elektronska provodljivost, optička aktivnost, postojanost u spoljašnjoj sredini, mogućnost hemijske i elektrohemisjke sinteze i niska cena monomera nalaze primenu u mnogim oblstima: elektrohemisjkim sistemima za skladištenje i proizvodnju električne energije, elektronici, za izradu sensorskhih i biosenzorskih elektroda, za izradu antistatičkih i materijala mikrotalasnih i magnetnih štitova i u zaštiti metala i legura od korozije. Primena polianilina u zaštiti od korozije je prvenstveno motivisana potrebom zamene toksičnih materijala iz sistema prevlaka. Postoji dosta literaturnih podataka iz ove oblasti. Ipak, imajući u vidu raznovrsnost metala i legura, korozionih sredina, postupaka pripreme materijala, nanošenja prevlaka i vrsta prevlaka, kao i eksperimentalnih procedura i observacija, praktično je nemoguće uspostaviti jedinstven mehanizam antikorozione zaštite metala u prisustvu polianilina. Najcitiraniji i najpopularniji mehanizmi koji se mogu naći u literaturi obuhvataju barijerni mehanizam i mehanizam anodne zaštite.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Application of polyaniline in corrosion protection of metals
T1  - Primena polianilina u zaštiti metala od korozije
EP  - 360
IS  - 4
SP  - 353
VL  - 53
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2090
ER  - 

@article{
author = "Gvozdenović, Milica and Jugović, Branimir and Jambrec, Daliborka and Stevanović, Jasmina and Grgur, Branimir",
year = "2012",
abstract = "Polyaniline is probably the most investigated electroconducting polymer. This popularity is a result of its important features: existence of various oxidation states, electrical and optical activity, low cost monomer, red/ox reversibility, environmental stability, ease of both chemical and electrochemical synthesis etc. These unique features are partly inherited from its polymeric origin and partly aroused from its conductivity and could be considered for practical application in: electrochemical systems for energy storage and conversion, electronic devices, electromagnetic and microwave shielding materials, sensors, biosensors and corrosion protection as well. The motivation of application of polyaniline in corrosion protection of metals and alloys is replacement of environmentally hazardous materials, e.g. chromates in coating systems. Up to day, lot of studies on various metals both on iron, steels and non-ferrous metals and alloys were performed. The studies involve investigation on individual polyaniline coatings and polyaniline in coating systems. Owing to variation in experimental procedure (substrate, substrate preparation, coating type, corrosion environment, test method etc..) it is unlikely to propose unique mechanism for corrosion protection of metals in the presence of polyaniline. However, most of the literature is interpreted in terms of general mechanisms of corrosion protection, barrier and anodic protection., Polianilin je najproučavaniji elektroprovodni polimer. Ova popularnost polianilina je posledica jedinstvenih svojstava, delom nasleđenih od polimerne prirode, a delom ostvarenih provodljivošću. Najvažnija svojstva polianilina: postojanje više oksidacionih stanja, elektronska provodljivost, optička aktivnost, postojanost u spoljašnjoj sredini, mogućnost hemijske i elektrohemisjke sinteze i niska cena monomera nalaze primenu u mnogim oblstima: elektrohemisjkim sistemima za skladištenje i proizvodnju električne energije, elektronici, za izradu sensorskhih i biosenzorskih elektroda, za izradu antistatičkih i materijala mikrotalasnih i magnetnih štitova i u zaštiti metala i legura od korozije. Primena polianilina u zaštiti od korozije je prvenstveno motivisana potrebom zamene toksičnih materijala iz sistema prevlaka. Postoji dosta literaturnih podataka iz ove oblasti. Ipak, imajući u vidu raznovrsnost metala i legura, korozionih sredina, postupaka pripreme materijala, nanošenja prevlaka i vrsta prevlaka, kao i eksperimentalnih procedura i observacija, praktično je nemoguće uspostaviti jedinstven mehanizam antikorozione zaštite metala u prisustvu polianilina. Najcitiraniji i najpopularniji mehanizmi koji se mogu naći u literaturi obuhvataju barijerni mehanizam i mehanizam anodne zaštite.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Application of polyaniline in corrosion protection of metals, Primena polianilina u zaštiti metala od korozije",
pages = "360-353",
number = "4",
volume = "53",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2090"
}

Gvozdenović, M., Jugović, B., Jambrec, D., Stevanović, J.,& Grgur, B.. (2012). Application of polyaniline in corrosion protection of metals. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 53(4), 353-360.
https://hdl.handle.net/21.15107/rcub_technorep_2090

Gvozdenović M, Jugović B, Jambrec D, Stevanović J, Grgur B. Application of polyaniline in corrosion protection of metals. in Zaštita materijala. 2012;53(4):353-360.
https://hdl.handle.net/21.15107/rcub_technorep_2090 .

Gvozdenović, Milica, Jugović, Branimir, Jambrec, Daliborka, Stevanović, Jasmina, Grgur, Branimir, "Application of polyaniline in corrosion protection of metals" in Zaštita materijala, 53, no. 4 (2012):353-360,
https://hdl.handle.net/21.15107/rcub_technorep_2090 .

TY  - JOUR
AU  - Gvozdenović, Milica
AU  - Jugović, Branimir
AU  - Trišović, Tomislav
AU  - Stevanović, Jasmina
AU  - Plazinić, M.
AU  - Grgur, Branimir
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2017
AB  - Polyaniline (PANI) anode, electrochemically formed on graphite from aniline containing sulfuric acid solution, and electrochemically formed thin film lead dioxide cathode, were investigated for possible applications as electrode materials in PANI/H2SO4/PbO2 aqueous based rechargeable power sources. The stimulation of charge/discharge characteristics of the cell, based on half cell reactions investigations, was evaluated. Charging of the cell would occur in the voltage range of 1.20 and 1.70 V, while discharge is expected in the voltage range of 1.35 and 1.00 V.
PB  - Hunedoara : University Politehnica Timisoara,  Faculty of Engineering Hunedoara
T2  - Annals of the Faculty of Engineering Hunedoara: International Journal of Engineering
T1  - Electrochemical characteristics of polyaniline/lead-dioxide power source
EP  - 448
IS  - 3
SP  - 445
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2017
ER  - 

@article{
author = "Gvozdenović, Milica and Jugović, Branimir and Trišović, Tomislav and Stevanović, Jasmina and Plazinić, M. and Grgur, Branimir",
year = "2012",
abstract = "Polyaniline (PANI) anode, electrochemically formed on graphite from aniline containing sulfuric acid solution, and electrochemically formed thin film lead dioxide cathode, were investigated for possible applications as electrode materials in PANI/H2SO4/PbO2 aqueous based rechargeable power sources. The stimulation of charge/discharge characteristics of the cell, based on half cell reactions investigations, was evaluated. Charging of the cell would occur in the voltage range of 1.20 and 1.70 V, while discharge is expected in the voltage range of 1.35 and 1.00 V.",
publisher = "Hunedoara : University Politehnica Timisoara,  Faculty of Engineering Hunedoara",
journal = "Annals of the Faculty of Engineering Hunedoara: International Journal of Engineering",
title = "Electrochemical characteristics of polyaniline/lead-dioxide power source",
pages = "448-445",
number = "3",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2017"
}

Gvozdenović, M., Jugović, B., Trišović, T., Stevanović, J., Plazinić, M.,& Grgur, B.. (2012). Electrochemical characteristics of polyaniline/lead-dioxide power source. in Annals of the Faculty of Engineering Hunedoara: International Journal of Engineering
Hunedoara : University Politehnica Timisoara,  Faculty of Engineering Hunedoara., 10(3), 445-448.
https://hdl.handle.net/21.15107/rcub_technorep_2017

Gvozdenović M, Jugović B, Trišović T, Stevanović J, Plazinić M, Grgur B. Electrochemical characteristics of polyaniline/lead-dioxide power source. in Annals of the Faculty of Engineering Hunedoara: International Journal of Engineering. 2012;10(3):445-448.
https://hdl.handle.net/21.15107/rcub_technorep_2017 .

Gvozdenović, Milica, Jugović, Branimir, Trišović, Tomislav, Stevanović, Jasmina, Plazinić, M., Grgur, Branimir, "Electrochemical characteristics of polyaniline/lead-dioxide power source" in Annals of the Faculty of Engineering Hunedoara: International Journal of Engineering, 10, no. 3 (2012):445-448,
https://hdl.handle.net/21.15107/rcub_technorep_2017 .

TY  - JOUR
AU  - Gvozdenović, Milica
AU  - Jugović, Branimir
AU  - Jambrec, Daliborka
AU  - Stevanović, Jasmina
AU  - Grgur, Branimir
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2016
AB  - Polyaniline is probably the most investigated electroconducting polymer. This popularity is a result of its important features: existence of various oxidation states, electrical and optical activity, low cost monomer, red/ox reversibility, environmental stability, ease of both chemical and electrochemical synthesis etc. These unique features are partly inherited from its polymeric origin and partly aroused from its conductivity and could be considered for practical application in: electrochemical systems for energy storage and conversion, electronic devices, electromagnetic and microwave shielding materials, sensors, biosensors and corrosion protection as well. The motivation of application of polyaniline in corrosion protection of metals and alloys is replacement of environmentally hazardous materials, e.g. chromates in coating systems. Up to day, lot of studies on various metals both on iron, steels and non-ferrous metals and alloys were performed. The studies involve investigation on individual polyaniline coatings and polyaniline in coating systems. Owing to variation in experimental procedure (substrate, substrate preparation, coating type, corrosion environment, test method etc..) it is unlikely to propose unique mechanism for corrosion protection of metals in the presence of polyaniline. However, most of the literature is interpreted in terms of general mechanisms of corrosion protection, barrier and anodic protection.
AB  - Polianilin je najproučavaniji elektroprovodni polimer. Ova popularnost polianilina je posledica jedinstvenih svojstava, delom nasleđenih od polimerne prirode, a delom ostvarenih provodljivošću. Najvažnija svojstva polianilina: postojanje više oksidacionih stanja, elektronska provodljivost, optička aktivnost, postojanost u spoljašnjoj sredini, mogućnost hemijske i elektrohemisjke sinteze i niska cena monomera nalaze primenu u mnogim oblstima: elektrohemisjkim sistemima za skladištenje i proizvodnju električne energije, elektronici, za izradu sensorskhih i biosenzorskih elektroda, za izradu antistatičkih i materijala mikrotalasnih i magnetnih štitova i u zaštiti metala i legura od korozije. Primena polianilina u zaštiti od korozije je prvenstveno motivisana potrebom zamene toksičnih materijala iz sistema prevlaka. Postoji dosta literaturnih podataka iz ove oblasti. Ipak, imajući u vidu raznovrsnost metala i legura, korozionih sredina, postupaka pripreme materijala, nanošenja prevlaka i vrsta prevlaka, kao i eksperimentalnih procedura i observacija, praktično je nemoguće uspostaviti jedinstven mehanizam antikorozione zaštite metala u prisustvu polianilina. Najcitiraniji i najpopularniji mehanizmi koji se mogu naći u literaturi obuhvataju barijerni mehanizam i mehanizam anodne zaštite.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Application of polyaniline in corrosion protection of metals
T1  - Primena polianilina u zaštiti metala od korozije
EP  - 360
SP  - 353
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2016
ER  - 

@article{
author = "Gvozdenović, Milica and Jugović, Branimir and Jambrec, Daliborka and Stevanović, Jasmina and Grgur, Branimir",
year = "2012",
abstract = "Polyaniline is probably the most investigated electroconducting polymer. This popularity is a result of its important features: existence of various oxidation states, electrical and optical activity, low cost monomer, red/ox reversibility, environmental stability, ease of both chemical and electrochemical synthesis etc. These unique features are partly inherited from its polymeric origin and partly aroused from its conductivity and could be considered for practical application in: electrochemical systems for energy storage and conversion, electronic devices, electromagnetic and microwave shielding materials, sensors, biosensors and corrosion protection as well. The motivation of application of polyaniline in corrosion protection of metals and alloys is replacement of environmentally hazardous materials, e.g. chromates in coating systems. Up to day, lot of studies on various metals both on iron, steels and non-ferrous metals and alloys were performed. The studies involve investigation on individual polyaniline coatings and polyaniline in coating systems. Owing to variation in experimental procedure (substrate, substrate preparation, coating type, corrosion environment, test method etc..) it is unlikely to propose unique mechanism for corrosion protection of metals in the presence of polyaniline. However, most of the literature is interpreted in terms of general mechanisms of corrosion protection, barrier and anodic protection., Polianilin je najproučavaniji elektroprovodni polimer. Ova popularnost polianilina je posledica jedinstvenih svojstava, delom nasleđenih od polimerne prirode, a delom ostvarenih provodljivošću. Najvažnija svojstva polianilina: postojanje više oksidacionih stanja, elektronska provodljivost, optička aktivnost, postojanost u spoljašnjoj sredini, mogućnost hemijske i elektrohemisjke sinteze i niska cena monomera nalaze primenu u mnogim oblstima: elektrohemisjkim sistemima za skladištenje i proizvodnju električne energije, elektronici, za izradu sensorskhih i biosenzorskih elektroda, za izradu antistatičkih i materijala mikrotalasnih i magnetnih štitova i u zaštiti metala i legura od korozije. Primena polianilina u zaštiti od korozije je prvenstveno motivisana potrebom zamene toksičnih materijala iz sistema prevlaka. Postoji dosta literaturnih podataka iz ove oblasti. Ipak, imajući u vidu raznovrsnost metala i legura, korozionih sredina, postupaka pripreme materijala, nanošenja prevlaka i vrsta prevlaka, kao i eksperimentalnih procedura i observacija, praktično je nemoguće uspostaviti jedinstven mehanizam antikorozione zaštite metala u prisustvu polianilina. Najcitiraniji i najpopularniji mehanizmi koji se mogu naći u literaturi obuhvataju barijerni mehanizam i mehanizam anodne zaštite.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Application of polyaniline in corrosion protection of metals, Primena polianilina u zaštiti metala od korozije",
pages = "360-353",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2016"
}

Gvozdenović, M., Jugović, B., Jambrec, D., Stevanović, J.,& Grgur, B.. (2012). Application of polyaniline in corrosion protection of metals. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 353-360.
https://hdl.handle.net/21.15107/rcub_technorep_2016

Gvozdenović M, Jugović B, Jambrec D, Stevanović J, Grgur B. Application of polyaniline in corrosion protection of metals. in Zaštita materijala. 2012;:353-360.
https://hdl.handle.net/21.15107/rcub_technorep_2016 .

Gvozdenović, Milica, Jugović, Branimir, Jambrec, Daliborka, Stevanović, Jasmina, Grgur, Branimir, "Application of polyaniline in corrosion protection of metals" in Zaštita materijala (2012):353-360,
https://hdl.handle.net/21.15107/rcub_technorep_2016 .